25 square yards is the surface area
By looking at the graph you can rule out choices C and D because the graph given to you is an increasing linear function and C and D represent functions with a decreasing or negative slope.
By looking at the picture the slop of the graph seems to be 4/1 (rise/run) so your slope is 4. And your y-intercept looks like its -4 so your answer is B<span />
The range is 17 because the highest score (95) minus the lowest score (78) is 17
The bottom answer m y = m h
