This is the page you will come to for your Do Now. I will keep all old Do Nows up for review purposes and to make sure anyone who is absent can go to the page and still complete the problem for her/his benefit. Some problems may be easy and some may be difficult, some I may not expect you to complete at the time it is given. However, they are all aimed at helping you do extremely well in the NJSLA Algebra 1 exams.
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September 9, 2019
- If x= 2 find the value of : x^2 -2x-24
- If f(x)= x^2 -2x-24 find the value of f(2)
- Use your graphing calculator or go to www.desmos.com/calculator and graph the above function and tell me what are the roots and vertex of the function. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
September 10, 2019
- If f(x)=x^2+2x-8.
- What are the zeros(roots) of the equation?
- What is the vertex of the equation
2. If f(x) = (x-2)(x+4)
- What are the zeros(roots) of the equation?
- What is the vertex of the equation
3.Use desmos or your graphing calculator to solve the question below.
Name the roots of this polynomial:
f(x) = (x + 4)(x + 2)(x − 1)
Do you think you could have solved it without using graphs?
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September 11, 2019
- Find the real roots, if any, of the following three functions.
- f(x) = (x-6)^2 -9
- g(x)= (x+3)^2 -4
- h(x)=(x-2)^2 +8
2. Write down the vertex for each of the above functions. Can you tell each vertex without having to graph the function? If so, how can you tell?
3.
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September 12, 2019
Look at the 3 functions from yesterday’s Do Now.
- f(x) = (x-6)^2 -9
- g(x)= (x+3)^2 -4
- h(x)=(x-2)^2 +8
How can you determine the roots of the functions without graphing each function?
What occurs when you use that method to solve for the real roots of function h ?
With the vertex form of the function, which two “things” can you find easily?
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September 16, 2019
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September 17, 2019
Classwork:
Use the links below to complete the exercise for today.
http://cimt.org.uk/projects/mepres/book9/bk9i5/bk9_5i3.html
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September 18, 2019
Classwork:
Use the link below to complete the exercise from yesterday.
http://cimt.org.uk/projects/mepres/book9/bk9i5/bk9_5i3.html
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September 19, 2019
Solve the following Quadratic Equations using factoring. Check your answers using Desmos or your Graphing calculators.
Classwork:
Use the link below to complete this exercise.
http://cimt.org.uk/projects/mepres/book9/bk9i5/bk9_5i3.html
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September 20, 2019
Solve the following Quadratic Equations using factoring. Check your answers using Desmos or your Graphing calculators.
Classwork:
Use the link below to complete this exercise.
http://cimt.org.uk/projects/mepres/book9/bk9i5/bk9_5i3.html
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September 23, 2019
Solve the following Quadratic Equations using factoring. Check your answers using Desmos or your Graphing calculators.
Practice factoring the following using the Difference of Two Squares method.
Continue working on this concept by working on this page.
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September 25, 2019
Solve the following Quadratic Equations using factoring. Check your answers using Desmos or your Graphing calculators.
When you are finished complete the page below.
http://cimt.org.uk/projects/mepres/book9/bk9i11/bk9_11i3.html
I will use this exercise to give a grade.
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September 26, 2019
Solve the following Quadratic Equations using factoring. Check your answers using Desmos or your Graphing calculators.
When you are finished complete the page below.
http://cimt.org.uk/projects/mepres/book9/bk9i11/bk9_11i3.html
I will use this exercise to give a grade.
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September 27, 2019
Solve the following Quadratic Equations using factoring. Check your answers using Desmos or your Graphing calculators.
When you are finished complete the page below.
http://cimt.org.uk/projects/mepres/book9/bk9i11/bk9_11i3.html
I will use this exercise to give a grade.
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October 02, 2019
Question 1
In analyzing the behavior of the graph we are going from left to right.
Solve the following using factoring.
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October 03, 2019
Question 1
Use Desmos or your Graphing calculator to graph the function in today’s Do Now. You will have to graph
y=16x(7-x).
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October 04, 2019
If you think it is necessary use graphing software to solve the following:
Question 1
Question 2
Question 3
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October 07, 2019
If you think it is necessary use graphing software to solve the following:
- Find the real roots, if any, of the following three functions.
- f(x) = (x-6)^2 -9
- g(x)= (x+3)^2 -4
- h(x)=(x-2)^2 +8
2. Write down the vertex for each of the above functions. Can you tell each vertex without having to graph the function? If so, how can you tell?
3.
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October 08, 2019
Look at the 3 functions from yesterday’s Do Now.
- f(x) = (x-6)^2 -9
- g(x)= (x+3)^2 -4
- h(x)=(x-2)^2 +8
How can you determine the roots of the functions without graphing each function?
What occurs when you use that method to solve for the real roots of function h ?
With the vertex form of the function, which two “things” can you find easily?
Solve the following Quadratic equations by factoring. See if you can do them mentally first.
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October 10, 2019
Question 1.
Question 2.
Solve the following Quadratic equations by factoring. See if you can do them mentally first.
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October 11, 2019
Question 1.
The above function can be written as f(x) =(x-1)^2 -2.
Find:
- f(-2)
- f(-1)
- f(0)
- f(1)
- f(2)
- f(4)
Question 2.
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October 14, 2019
Question 1.
Let us study Literal Equations here.
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October 15, 2019
Question 1.
Can you determine the vertex without plotting the graph? How can you?
Question 2.
Let us study Literal Equations here.
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October 16, 2019
Question 1.
Question 2.
In the second part of the Do Now you have the opportunity to get an easy 100. You just have to show me your computer screen with the first 3 Questions on this page with all the correct answers and you get a hundred.
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October 17, 2019
Question 1.
Question 2.
Question 3.
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October 18 2019
Question 1.
Question 2.
Question 3.
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October 21, 2019
Question 1.
Question 2.
Many students still have to take the easy 100 from yesterday’s exercise.. You just have to show me your computer screen with the first 3 Questions on this page with all the correct answers and you get a hundred.
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October 23, 2019
Question 1.
Question 2.
Question 3.
Some more practice on functions.
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October 24, 2019
Question 1.
- Write a compound inequality using x to indicate for which values of x is f(x) is greater than g(x)
- Write a compound inequality using x to indicate for which values of x is g(x) is greater than f(x)
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October 25, 2019
Question 1.
Question 2.
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October 29, 2019
Today we will do the Do Now online and I will take the grade that you get on the computer.
Click here and complete the exercise and show me the grade you received.
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October 30, 2019
Today we will do the Do Now online and I will take the grade that you get on the computer. This is another opportunity to get a hundred.
Click here and complete the exercise and show me the grade you received.
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October 31, 2019
Solve the following Quadratic equation using factoring and Completing the Square.
Use the roots and the vertex to sketch the graph in the space below.
Solve:
Using factoring:
Using completing the Square:
Use the roots and the vertex to sketch the graph below.
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November 01, 2019
Solve the following Quadratic equation using factoring and Completing the Square.
Use the roots and the vertex to sketch the graph in the space below.
Solve:
Using factoring:
Using completing the Square:
Use the roots and the vertex to sketch the graph below.
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November 04, 2019
Do Now.
I suggest that you complete today’s Do Now on your own and in silence. You have to reach the stage where you can think through these for yourselves and you need to get in the habit of focusing on working thorough difficult problems.
Question 1.
Question 2.
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November 05, 2019
Solve the following using completing the square. You may use factoring or graphs to check back your answer.
When using completing the square, try working with fractions instead of decimals.
Sometimes fractions can be friendly.
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November 06, 2019
Solve the following using completing the square. You may use factoring or graphs to check back your answer.
When using completing the square, try working with fractions instead of decimals.
Sometimes fractions can be friendly.
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November 12, 2019
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November 13, 2019
Let us make sure we remember how to solve quadratic equations by Completing the square.
Successful completion of this exercise is worth 100.
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November 14, 2019
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November 15, 2019
Those of you who are quicker and complete your quiz before the appointed time you can try here. I will use this as a makeup grade.