Question

Dada a função f (x)= 8x+15, Calcule

a)f (5) - f (10)

b)f (7) + f (-3)

c)f (2) + f (3)

?

Answer 1

a) 8.5+15-8.10+15
40+15-80+15
70-80= -10
b) 8.7+15+8(-3)+15
56+15-24+15
86-24= 62
c) 8.2+15+8.3+15
16+15+24+15
40+30= 70