What is this answer ?

Question

Find a linear function​ h, given h(4​)=−16 and ​h(−2​)=14. Then find ​h(8​).

Answer 1

h() = ax + b

Since h(4) = -16, 4a + b = -16

Since h(-2) = 14, -2a + b = 14

So, 6a = -30

a = -5 and b = 4

So, h(x) = -5x + 4

Now plug in 8 for x to find h(8)