Question

Melinda works at a cafe. Each day that she works, she records x, the total dollar amount of her customers’ bills and then y, her total daily wages. The table shows her data for 2 weeks.

A 2-column table with 11 rows. The first column is labeled x with entries 50, 100, 75, 80, 90, 140, 150, 95, 125, 160, 165. The second column is labeled y with entries 36, 43, 38, 40, 42, 50, 60, 43, 46, 50, 55. A graph shows the horizontal axis numbered 40 to 160 and the vertical axis numbered 10 to 60. A line increases from 0 to 160.
According to the line of best fit, what is the minimum amount, to the nearest dollar, Melinda will earn for each day of work, even if she serves no customers?

Answer 1

$26

Explanation:

Answer 2

Answer: $26

Explanation:

Given the following :

X(total dollar amount of customer's bill) = 50, 100, 75, 80, 90, 140, 150, 95, 125, 160, 165.

Y(total daily wages) = 36, 43, 38, 40, 42, 50, 60, 43, 46, 50, 55.

The regression equation is given as :

Y = 0.1770X + 25.94 ( using the online regression calculator)

Therefore, if the total amount of customer's bill equals 0, that is X = 0 (her minimum amount if she serves no customer)

Y = 0.1770(0) + 25.94

Y = 25.94

$25.94