Hasan plans to choose a book from a section of the store where everything is 25% off. He writes the expression d−0.25d to find the sale price of the book if the original price is d dollars.

Bella correctly writes another expression, 0.75d, that will also find the sale price of the book if the original price is d dollars.

Hasan's Expression:

d: original price of book

0.25: percent discount

0.25d: amount of discount

d-0.25d: sale price of book

Step-by-step explanation:

I got that part right but I got Bella's Expression part wrong so I don't know the answers to that one

  y= -3x is the required function.

step-by-step explanation:

we have been given a table:

x             y

0             0

1             -3

3             -9

-2             6

we can see that the values of y is -3 times the value of x

hence, the function would be: y= -3x.

put the values of x will give the same y as in the table that means function is satisfying the given table.

yes because there is exactly one y value for every x value

for function there can't be more than one value for every x value