Question

If f(x) = −4x − 2, find f(−3)

10

−14

12

−10

Answer 1

f(x) = -4x -2
f(-3) = -4(-3) -2
= ..................
see we have just simply substituted x=-3 into the equation given?

Answer 2

yes(:

Answer 3

ok, now tell me what the answer is if you have figured it out?

Answer 4

_228 okay thats wrong ):

Answer 5

-228

Answer 6

ok this is our equation f(x) = -4x -2
it's the same as saying y = -4x -2
and we want to substitute x=-3 into the equation, so we simply replace the x in the above equation by -3
y=-4(-3) -2
y= ? (you can do this)

Answer 7

i dont know what to do ):