Respuesta :
f(x) = -3x - 7.....f(-4)...this is basically saying that x = -4.....so sub in -4 for x
f(-4) = -3(-4) - 7
f(-4) = 12 - 7
f(-4) = 5 <===
f(-4) = -3(-4) - 7
f(-4) = 12 - 7
f(-4) = 5 <===