Question

Given f(x)=6x+8

a) Evaluate f(−2)

f(−2) =

b) Solve f(x)=38

x =

Answer 1

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

=-12+8

=-4

b) 38=6x+8

-8 -8

30=6x

÷6. 6

5=x