Function Operations — Quiz

Question 1

Which of the following is the graph of open paren g minus f close paren of x ?

Revolt · Accepted Answer

Image with description On a coordinate plane, the x and y axes range from negative 8 to 8 in increments of 1. The graph has a straight line with a positive slope. It goes through points (negative 2 comma negative 6), (0 comma 0), and (2 comma 6).

Question 2

If f of x and g of x are quadratic functions but open paren f plus g close paren of x produces the graph, which statement must be true?

Revolt · Accepted Answer

The leading coefficients of f of x and g of x are opposites.

Question 3

If f of x is equal to 8 minus 10 x and g of x is equal to 5 x plus 4 , what is the value of f g times negative 2 ?

Revolt · Accepted Answer

78

Question 4

If f of x is equal to x squared minus 2 x and g of x is equal to 6 x plus 4 , for which value of x does open paren f plus g close paren of x is equal to 0 ?

Revolt · Accepted Answer

negative 2

Question 5

If f⁡(x)=10−2⁢x^2 and g⁡(x)=5+2⁢x , what is the value of (f−g)⁢(−1) ? Enter your answer in the box.

Revolt · Accepted Answer

5

Question 6

Two functions are given. f⁡(x)=x+1 g⁡(x)=3⁢x−1 Plot a line for (f−g)⁢(x). To graph a line, select two points.

Revolt · Accepted Answer

line; 0; 2; 1

Question 7

If f of x is equal to square root of x plus 12 and g of x is equal to 2 square root of x , what is the value of open paren f minus g close paren of 144 ?

Revolt · Accepted Answer

0

Question 8

Which expression is equivalent to open paren f plus g close paren of 4 ?

Revolt · Accepted Answer

f of 4 plus g of 4

Question 9

If f of x is equal to 16 x minus 30 and g of x is equal to 14 x minus 16 , then for which value of x does open paren f minus g close paren of x is equal to 0 ?

Revolt · Accepted Answer

12

Question 10

For what interval is the value of open paren f minus g close paren of x negative?

Revolt · Accepted Answer

open paren negative infinity comma 2 close paren

Function Operations — Quiz Answers

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