If f(x)=8x+6, what is f(-1)

asked Oct 25, 2019 21.2k views

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2 votes

f(x) = 8x + 6

To find f(-1), substitute x = -1 :

f(-1) = 8(-1) + 6 = -8 + 6 = -2

Answer: f(-1) = -2

Cthos answered Oct 28, 2019

by Cthos

6.3k points

0 votes

If I remember correctly this is how you solve it.

f(x)=8x+6
f(-1)=8(-1)+6
f(-1)=-8+6
f(-1)= -2

Rumid answered Oct 29, 2019

by Rumid

5.7k points

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