How to write (-4,5) and (0,-4) in y=mx+b

Step-by-step explanation:

(-4,5) and (0,-4)

y2 = - 4, y1 = 5, x2 = 0 and x1 = - 4

slope m = {y2-y1}/{x2-x1}

m = {-4 - 5}/{0 + 4}

m = - 9/4

And

y - y1 = m (x - x1)

y - 5 = - 9/4 (x + 4)

y - 5 = - 9x/4 - 9

y = - 9x/4 - 9 + 5

y = - 9x/4 - 4

y = 9/5 x - 4

Step-by-step explanation:

first find slope or m

slope is change in y over the change in x

-4-5/0-5 = -9/-5 = 9/5

the (0, - 4) is the y intercept or b