I guess the only way to use subtraction is to take the total area of the grid and subtract it by the total area around the figure. So it since it is a 10 by 10 grid, it would be 100 (since 10*10=100) minus the area around the shape.
Answer:
(17+11)/(-9-5)= 28/-14= -2 is the slope
Answer: the slope is defined as the ratio of vertical change between two point.
Step-by-step explanation: or known as the run. The slope of a line is mostly presented by the letter m.