Question

Solve this on a page!

Answer 1

Step-by-step explanation:

if f(x)=√x-4-3x

1)f(4)=(√4-4)-3×4

=(√0)-12

f(4)= -12

2)f(8)=(√8-4)-3×8

=(√4)-24

=2-24

f(8) = -22

3)f(13)=(√13-4)-3×13

=(√9)-39

=3-39

= -36

f(13)= -36