Question

sabendo que f:R=>R defina por f(×)=2x-3 calcule
F (-2)
F (0)
F (3)
F (1/2)

Answer 1

f(-2) = 2(-2) - 3

f(-2) = - 4 - 3 = -7

f(0) = 2(0) - 3 = -3

f(3) = 2(3) - 3

f(3) = 6 - 3 = 3

f(1/2) = 2(1/2) - 3

f(1/2) = 1 - 3 = -2