AnswersCMS 2026-2027 NC Math 1 CREDIT RECOVERYQuadratic Functions and Equations

Quadratic Functions and Equations — Test Answers

25 verified answers
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A rectangle’s length is three times its width, w Its area is 243 square units. Which equation can be used to find the width of the rectangle?

A
w squared is equal to 3 times 243
B
3 w squared is equal to 243
C
3 w squared is equal to 3 times 243
D
4 w squared is equal to 243
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Which equation results from taking the square root of both sides of open paren x minus 9 close paren squared is equal to 81 ?

A
x minus 9 is equal to plus or minus 9
B
x minus 3 is equal to plus or minus 9
C
x plus 9 is equal to plus or minus 9
D
x plus 3 is equal to plus or minus 9
25

Which equation, when graphed, has x -intercepts at 2 comma 0 and 4 comma 0 and a y -intercept of 0 comma negative 16 ?

A
f of x is equal to negative open paren x plus 2 close paren times open paren x plus 4 close paren
B
f of x is equal to negative 2 open paren x plus 2 close paren open paren x plus 4 close paren
C
f of x is equal to negative open paren x minus 2 close paren times open paren x minus 4 close paren
D
f of x is equal to negative 2 open paren x minus 2 close paren open paren x minus 4 close paren

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