Question

I need help with 18 and 22. With a full explanation please.

Answer 1

The answer of 18 is y = 0.5x + 0

The answer of 22 is y = -0.4x + 0

Explanation:

c is constant, m is gradient

18. m = 1/2

m = 0.5

1 = 0.5(2) + c

1 = 1 + c

c = 0

y = 0.5x + 0

22. m = 2/-5

m = -0.4

2 = -0.4(-5) + c

2 = 2 + c

c = 0

y = -0.4x + 0