Respuesta :
f(x) = -3x - 7....looking for f(-4) means sub in -4 everywhere there is an 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 <===