Sami’s mom went to the mall last Monday and decided that she wants to purchase a new computer soon. She read online that the price of the computer is expected to be in alignment with the following linear model. In this model, x represents the number of weeks since last Monday, and y represents the price of the computer. Interpret the y-intercept.

Question

A.
The y-intercept represents the rate of decrease in the price of the computer.
B.
The y-intercept represents the discounted price of the computer after one week.
C.
The y-intercept represents the total amount saved on the price of the computer.
D.
The y-intercept represents the price of the computer last Monday

Answer 1

The correct interpretation of the y-intercept in this context is:

D. The y-intercept represents the price of the computer last Monday.

In a linear model where x represents the number of weeks since a specific point in time (last Monday), the y-intercept (when x = 0) corresponds to the value of y at that specific point in time, which in this case is the price of the computer on the day Sami's mom went to the mall.