Question

the table shows the relationship between the total cost of movie tickets y and the amount of people x who attended to movieX,5,6,7,8,9,y,35,42,49,56,63which best describes the function in the table from x = 5 to x = 9

Answer 1

We have the following:

we can calculate the function as follows:

the first thing is to calculate the slope of the function

`m=(y_2-y_1)/(x_2-x_1)`

replacing:

`\begin{gathered} m=(63-35)/(9-5) \\ m=7 \end{gathered}`

Therefore, the function is:

`y=7x`

Therefore, the cost of movie ticket is $7