How do you get equations from a graph?

Answer 1

you can write it in the form

y=mx+b

where y and x are constants, m is slope, and b is the y-intercept

you can find the slope (m) by taking y1-y2/x2-x1 with any 2 points on the graph ( it doesn't matter which point comes first)

if you have a graph, to find b (y-int) locate the point where x equals zero, if there is none, than the y-int is zero

if you don't have a graph plug in m along with any point on the graph to find b