The scatter plot below shows the number of prom tickets sold over a period of 7 days. the line of best fit drawn on the plot shown is used to predict the number of tickets sold on a certain day. use the two points shown on the line of best fit to calculate its slope to the nearest tenth.

The slope of the line to the nearest tenth is:

                              4.2

Clearly after looking at the scatter plot we observe that the line of best fit passes through the points:

(1,30) and (7,55)

We know that the slope of any line passing through two points (a,b) and (c,d) is calculated by the formula:

Here we have:

 (a,b)=(1,30)   and   (c,d)=(7,55)

Hence, the slope is:

Hence, the slope of the line of best fit is:

                      4.2

answer: 1, 3 and 5 are correct

step-by-step explanation:

(2,20) means that the 2 is 2 hours and 20 is 20$. so there both 20$ for 2 hours only the same price. like it says. so, the dunk tank and the bounce house are the same price (20$) for the same amount of time (2 hours).

hope i