PLS HELP I WILL DO ANYTHING

First let’s find the slope (gradient):

We pick 2 coordinates on the line. Let’s choose (2,100) and (8,400)

Gradient = (y2-y1)/(x2-x1) = (400-100)/(8-2) = 300/6 = 50

The general equation of a line is in the form y = mx + c, where m is the gradient

So we have, y = 50x + c

To find c, we replace one of the coordinates that we chose in the equation. Let’s replace (2,100)

100 = 50(2) + c
100 = 100 + c
c = 100 - 100 = 0

Therefore, the equation is y = 50x + 0 which is y = 50x