Question

Mir goes to the laundromat with $10. Each load of laundry costs $1.25 to wash and dry. When graphed as a linear function where x represents the number of loads washed and dried, and y represents the amount of money Mir has left, what is the zero of the function?

Answer 1

The zero of the linear function is at x = 8, indicating that Mir will have no money left after washing and drying 8 loads of laundry.

Step-by-step explanation:

The linear function that represents the amount of money Mir has left after washing and drying x loads of laundry can be written as: y = 10 - 1.25x. In this function, x represents the number of loads washed and dried, and y represents the amount of money Mir has left. To find the zero of the function, we set y equal to zero and solve for x:

0 = 10 - 1.25x

1.25x = 10

x = 10 / 1.25

x = 8

Therefore, the zero of the function is x = 8. This means that after washing and drying 8 loads of laundry, Mir will have no money left.