11.7
…………………………………………………..
Formular for line graph is
Find the gradient first

Substitude the gradient to the formular
∴ m=8h is the equation of the graph.
Answer is C.
Answer:
1) y = 1.8741176487x + 3.655964863
2) About $191 using the equation, about $180 or more using the data you are given.
3) I can use the regression calculator by using the largest number of customers you have in the data set and lowest number of customers and compare them to see if the numbers are in ascending or descending order.
You just need to isolate the d. So divide both sides by seven. You should end up with d=8