Question

Alyssa works as a sales representative in an electronics store. She earns a fixed daily wage plus a commission on the sales she makes. The table shows her earnings based on the amount of sales she makes in a day.
Total Sales ($) Daily Earnings ($)
0 80
200 110
500 155
800 200
1,200 260

The equation that gives Alyssa's daily earnings based on her total sales is Y=0.15+80 .
When this data is plotted on a graph with a line connecting all the points, the y-intercept of the line represents daily sales and the slope of the equation represents earnings based on daily sales .
In this scenario, the y-intercept is 80.

Are my answers to the questions correct?

Answer 1

If we make some assumptions about what your questions and answers are, it appears some adjustments may be needed.

Q: What is the equation that gives Alyssa's daily earnings?

A: If we use y for daily earnings and x for sales, the equation would be

... y = 0.15x + 80 . . . . . . . . . your equation is missing an "x"

Q: What does the y-intercept of the graph represent?

A: Alyssa's earnings if she makes no sales

Q: What does the slope of the line represent?

A: The commission Alyssa receives on sales (her rate of increase of earnings as a function of her sales)

Q: What is the y-intercept?

A: 80 . . . . . . correct