Question

How do I find the linear change

Answer 1

In order to find the rate of change of the given line, use the following formula:

`m=(y_2-y_1)/(x_2-x_1)`

where (x1,y1) and (x2,y2) are two points of the line.

From the given graph you can select any pair of points, for example:

(x1,y1) = (2,400)

(x2,y2) = (4,1200)

replace the values of the previous coordinates in the formula for m:

`m=\frac{1200-400_{}}{4-2}=(800)/(2)=400`

Hence, the rate of change is 400