They help by the number of total dots on the diagram, they told you the answer to 8+6=14
The answer is (7,-1).
x1-y1 and x2-y2 gives you 2-(-5) and 3-4, so you now have a point which is (7,-1) which is the slope.
320/240 = 1.33
1.33 = 133% (move the decimal point over two places to the right)
133% is your answer
hope this helps
