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Elementary,Middle School,High School,College,University,PHD
Teaching Since: | Jul 2017 |
Last Sign in: | 264 Weeks Ago, 3 Days Ago |
Questions Answered: | 5502 |
Tutorials Posted: | 5501 |
MBA.Graduate Psychology,PHD in HRM
Strayer,Phoniex,
Feb-1999 - Mar-2006
MBA.Graduate Psychology,PHD in HRM
Strayer,Phoniex,University of California
Feb-1999 - Mar-2006
PR Manager
LSGH LLC
Apr-2003 - Apr-2007
Question 1 (Essay Worth 10 points)
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(08.01, 8.02 MC)
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An expression is shown below:
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2x3y + 8xy − 4x2y − 16y
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Part A: Rewrite the expression so that the GCF is factored completely. (4 points)
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Part B: Rewrite the expression completely factored. Show the steps of your work. (6 points)
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Question 2 (Essay Worth 10 points)
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(08.05, 8.06 MC)
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Part A: The area of a square is (16x2 − 8x + 1) square units. Determine the length of each side of the square by factoring the area expression completely. Show your work. (5 points)
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Part B: The area of a rectangle is (81x2 − 4y2) square units. Determine the dimensions of the rectangle by factoring the area expression completely. Show your work. (5 points)
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Question 3 (Essay Worth 10 points)
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(08.07 HC)
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An expression is shown below:
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f(x) = –16x2 + 22x + 3
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Part A: What are the x-intercepts of the graph of the f(x)? Show your work. (2 points)
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Part B: Is the vertex of the graph of f(x) going to be a maximum or minimum? What are the coordinates of the vertex? Justify your answers and show your work. (3 points)
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Part C: What are the steps you would use to graph f(x)? Justify that you can use the answers obtained in Part A and Part B to draw the graph. (5 points)
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