If the mean of a symmetric distribution is 170 what is the median

Eight people were asked what the balance of their savings account at the beginning of the month was and how much it increased or decreased by the end of the month. create a scatter plot that represents the data that is shown in the table. the x-axis represents the beginning balance in thousands of dollars and the y-axis represents the change in the savings account in hundreds of dollars. name beginning balance (in thousands of dollars) change in savings account (in hundreds of dollars) jimmy 5 3 kendra 4 7 carlos 5 4 yolanda 3 1 shawn 2 5 laura 3 2 andy 5 6 georgia 4 3

Plot the points (0,6), (3,15.8), and (9.5,0) using the graphing tool, and find the function

How do i simply this expression (quadratic formula basis) on a ti-84 or normal calculator?