Find an equation of the line passing through each of the following pairs of points.

Answer 1

Find an equation of the line passing through each of the following pairs of points.
Find an equation of the line passing through each of the following pairs of points.

Answer 2

clearly the slope is (3-0)/(4-0) = 3/4 and since (0,0) is on the y-axis the y-intercept is 0

what do you know about the values of m and b in y = mx + b ?

Answer 3

When in danger or in doubt, sketch a graph :)