Question

De acordo com a função f(x)= 2x - 8, calcule

a) f(5)=
b) f(-2)=
c) f(-x)=
d) f(x)=

Answer 1

f(5) = 2*5-8
10-8
4

f(-2) = 2*(-2)-8
-4-8
-12

f(-x) = -2x-8

f(x) = 2x-8