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If f(x)=4x+5 , what is f(-3) and f(3) A 4 and 5 B -7 and 17 C -3 and 3 D -17 and 7
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1 vote
If f(x)=4x+5 , what is f(-3) and f(3)

A 4 and 5
B -7 and 17
C -3 and 3
D -17 and 7

User Mostafa Solati
by
4.0k points

2 Answers

6 votes
it would be B: -7 and 17

because 4(-3)+5= -7 and 4(3)+5=17
User Dhythhsba
by
5.0k points
3 votes
Answer:
B. -7 and 17

Step-by-step explanation:
Plug in the given number for x.
f(3)=4(3)+5
=12+5
=17

f(-3)=4(-3)+5
=-12+5
= -7
User TonyW
by
4.3k points
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