Respuesta :
_award brainliest if helped!
believe there's a typo ? f(x) = 3x =5
f(-4) means when x=-4 .
So you have to substitute x as -4 and calculate.
If f(x) = 3x+5 ,
So when x=-4, f(-4) = 3(-4) +5 = -7
If f(x) = 3x-5,
So when x=-4, f(-4) = 3(-4) -5 = -17
believe there's a typo ? f(x) = 3x =5
f(-4) means when x=-4 .
So you have to substitute x as -4 and calculate.
If f(x) = 3x+5 ,
So when x=-4, f(-4) = 3(-4) +5 = -7
If f(x) = 3x-5,
So when x=-4, f(-4) = 3(-4) -5 = -17