f(x) = 10 - 4x
You must know that f(x) is technically "y" (the right side of the ( not this place ,this place ) )
A) (2, -18)
f(x) = 10 - 4x
-18 = 10 - 4(2)
WRONG!!
B) (18, -2)
f(x) = 10 - 4x
-2 = 10 - 4(18)
WRONG!!
C) (-2, 18)
f(x) = 10 - 4x
18 = 10 - 4(-2)
18 = 10 + 8 (two negatives numbers multiplied together=positive number)
18 = 18
Correct!
your answer is C
hope this helps :D
