Answers WSFCS Math 2 CRUnit Test

Unit Test — Unit test Answers

25 verified answers1 views

Free Preview

Which function is a quadratic function?

a(x) = –2x3 + 2x – 6

b(x) = 5x3 + 8x2 + 3

c(x) = –8x2 + 3x – 5

d(x) = 6x4 + 2x – 3

Free Preview

What number should be added to both sides of the equation to complete the square? x2 – 10x = 7

Answer not available

A 5 inch × 7 inch photograph is placed inside a picture frame. Both the length and width of the frame are 2a inches larger than the width and length of the photograph. Which expression represents the perimeter of the frame?

4a + 12

8a + 24

mc025-1.jpg

mc025-2.jpg

Vanessa uses the expressions (3x2 + 5x + 10) and (x2 – 3x – 1) to represent the length and width of her patio. Which expression represents the area (lw) of Vanessa’s patio?

mc025-1.jpg

mc025-2.jpg

mc025-3.jpg

mc025-4.jpg

What is the product?

mc008-2.jpg

mc008-3.jpg

mc008-4.jpg

mc008-5.jpg

Sam is determining the area of a triangle. In this triangle, the value for the height is a terminating decimal, and the value for the base is a repeating decimal. What can be concluded about the area of this triangle?

The area will be irrational because the height is irrational.

The area is irrational because the numbers in the formula are irrational and the numbers substituted into the formula are rational.

The area is rational because the numbers in the formula are rational and the numbers substituted into the formula are rational.

The area will be rational because both the height and the base are irrational.

What is the product?

mc008-2.jpg

mc008-3.jpg

mc008-4.jpg

mc008-5.jpg

What expression is equivalent to ?