Question

Dada a funçao f(x)= 8x+15, calcule f(0) - f(3):

Answer 1

f(x)= 8x+15
f(0)= 8.0+15 = 0+15 = 15
f(3)= 8.3+15 = 24+15 = 39

f(0)-f(3) = 15 - 39 = -24

Answer 2

f(0) =8x+15 - f(3) =8x+15

8.0 + 15 - 8.3 + 15

0 + 15 - 24 + 15

30 - 24

6

tendeu ?