AnswersOC27 ALG 2-1200330-S1-Degele-VOL7006PChapter 4 Part 1 Unit TEST: Polynomial Functions

Semester 1 Cumulative Exam Answers

0 verified answers
21
Free Preview

Which property of multiplication is shown below? If x = 3 + 4i and y = 5 + 6i, x × y = y × x.

A
commutative property
B
identity property
C
distributive property
D
associative property
22
Free Preview

What is the greatest possible integer value of x for which is an imaginary number?

Question illustration
A
3
B
4
C
5
D
6
23

The equations –a – 7b = 14 and –4a – 14b = 28 represent a system of linear equations. Which statement correctly explains how to eliminate the variable b when solving the system of equations?

A
Multiply the first equation by –2 and add it to the second equation. Then solve the resulting equation, –2a = 0.
B
Multiply the first equation by 2 and add it to the second equation. Then solve the resulting equation, –2a = 0.
C
Divide the second equation by –4 and add it to the first equation.
D
Divide the second equation by 4 and add it to the first equation.
24

The profits in hundreds of dollars, P(c), that a company can make from a product is modeled by a function of the price, c, they charge for the product: P(c) = –20c2 + 320c + 5,120. What is the maximum profit the company can make from the product?

A
$540,000
B
$640,000
C
$800,000
D
$896,000
25

What is the value of w in the solution to the following system of linear equations?

Question illustration
A
Option
Option A
B
Option
Option B
C
Option
Option C
D
Option
Option D

Did you find these answers helpful?