We want a line through 120 and has the slope 12 Point slope

We want a line through (1,20) and has the slope 1/2.

Point slope is the easiest method here. Recall the formula:

y - y1 = m(x - x1) where (x1,y1) is the point and m is the slope.

Plug into this formula and you\'ll have your line.

The equation of a line passing through (x1, y1) and with a slope m is (y - y1)/(x - x1) = m

Here x1 = 1, y1 = 20 and the slope is 1/2

The equation of the line is:

(y - 20)/(x - 1) = 1/2

=> 2y - 40 = x - 1

=> x - 2y + 39 = 0

The equation of the line is x - 2y + 39 = 0