Question

I have no idea how to solve this.

f(x)=3x-4

a) f(10)
b) f (-2)
c) f (0)
d) (b)

Answer 1

for f(10) notice that the x was replaced by 10, so do the same thing on the right side

f(10) = 3(10) - 4 = 26

do the others the same way