Question

Write a linear function f with the values f(o) = -4 and f(3) = 8

1) f(x) = -4x+4
2)f(x) = 3x+4
3)f(x) = 4x-4
4)f(x) = 3x-4

Someone help me answer this please

Answer 1

Answer:

3)  f(x) = 4x - 4

Step-by-step explanation:

y = mx + b

f(0) = -4 This is y -intercept.

y = mx  - 4

m = (y2 - y1)/(x2 - x1) = (8 -(-4))/(3 -0)= 12/3 = 4

y = 4x - 4

f(x) = 4x - 4