Answer:
y = 5x + 10
Explanation:
y = mx + b
this is called the slope-intercept form of a line and the 'm' refers to the slope and the 'b' refers to the y-intercept
sometimes you can find the y-intercept just by looking at the graph, which is the case with your graph; we can see the y-intercept is 10
to determine slope, take any two points from the line, for example, (4,30) and (0,10) and find the difference of the y-values over the difference of the x-values
m =
=
or 5