Question

Dada a função f: R-R, definida por f(x)=5x+2 calcule.
a) f(-2)=
b) f(0)=
c) f(-1)=

Answer 1

a) f(-2) =  5 * (-2) + 2

f(-2) = -10 + 2

f(-2) = -8

b) f(0) =  (5 * 0) + 2

f(0) =  0 + 2

f(0) = 2

c) f(-1) = 5 * (-1) + 2

f(-1) = -5 + 2

f(-1) = -3