You have to find the mean (average) which is (10+x)divided by 2 to get how long it would take them together. (chase is x because you don’t know how long yet so u use a variable)
Slope is found when you put y2-y1/x2-x1. So your equation would be (-2)-2/6-3. That answer would be -4/3. Nothing can be simplified further, so that is your answer
