Question

What linear function can be represented by the set of ordered pairs?

{(−4, 15), (0, 5), (4, −5), (8, −15)}

Answer 1

I've completed the test:

Answer 2

Solving for the slope using points ( (−4, 15), (0, 5)
M = ( 15 – 5) / ( -4 – 0) = -5 / 2
Solving for b
Y = mx + b 5 = 0(-5/2) + b
B = 5
So the linear function is
Y = (-5/2) x + 5