Question

sabendo que f (x - 1) = 2x + 3 calcule: a) f(1) b) f(3) c) f(6) d) f(-3)

Answer 1

A)

f(1-1)= 2*1+3

f(0)= 2+3

f(0)= 5

B)

f(3-1)= 2*3+3

f(2)= 6+3

f(2)= 9

C)

f(6-1)= 2*6+3

f(5)= 12+3

f(5)= 15

D)

f(-3-1)= 2*(-3)+3

f(-4)= -6+3

f(-4)= -3