Find the slope of a line with a y-intercept of -5 that goes through the point (12,3). Formula: y=mx+b

Slope is equal to rise over run. In this case there is a point at (0,-5), and (12,3). The change in the y is positive 8, and x positive 12. Because of the slope formula change in y over change in x, you could write this as 8/12, or 2/3. The equation would then be

y=2/3x-5

2.5 % increase 

this is correct i belive