Explanation:
I use GeoGebra for some graphs and a lot of plane figures. It can do some 3-d figures, but I find those difficult.
Almost any presentation software will let you draw circles, rectangles, lines and arrows.
Answer: slope = 4
Step-by-step explanation:
slope = m = rise/run = y1-y2/x1-x2
9-1/5-3 = 8/2 = 4
HOPE THIS HELPS YOU!!!