What is the slope of the line through (2,-2)(2,−2)left parenthesis, 2, comma, minus, 2, right parenthesis and (9,3)(9,3)left parenthesis, 9, comma, 3, right parenthesis?

What is the slope of the equation y =

Can someone me do math because i am having a breakdown rn because i don’t get it

Over the last 8 nights, elyse earned the following in tips: {105, 120, 84, 95, 100, 132, 140}. if she earns $140 a night for the next four nights, which measure of center would increase more, the mean or median?