Question

f(x) = 2x+1; se x > 3
-3x +2; se x -<3

calcular
a) f(1)
b)f (5)

Answer 1

f(5)=-3(5)+2

f(5)=2-15+2

f(5)= -13

x>=3   maior igual.

f(x) = 2x+1

f(1)= 2(1)+1

f(1)2+1

f (1)=3

x<3