Jay’s older sister, Sam, has a choice of two summer jobs. She can either work at a popular ice cream shop or at the local pool club. The ice cream shop would pay her to work 15 hours per week. She would make $8 per hour plus a 2% commission on her sales. At the pool club, Sam could earn $200 per week working 15 hours restocking clean towels. Sam wants to take the job that pays her the most. How much would Sam have to sell for the job at the ice cream shop to be the better choice for her summer job?

50 ice creams per week

Step-by-step explanation:

dont think so

step-by-step explanation:

let's cover over the formula of the vertex:

y = a(x – h)^2 + k

in this formula, (h,k) are the vertex, always remember that the positive or negative value of the vertex is based on the sign it has.

for example, if the vertex is -3,-6 then both the x and y value would have the positive sign attached to it and if it were a positive x and y value, then a negative sign would be attached to it.

with that being said, for our problem the x value is a positive one so we are looking for a number with a negative sign next to it, in this case the first and second choice.

however, for the first answer choice it isn't quite part of the formula so we know that the answer choice correctly displays the x value.

to confirm, we can see if the -1 fits correctly with the second answer choice, and as mentioned above a negative number will have a positive sign attached to it. so, for our problem we can see that -1 has been changed to +1, so we can confirm that the second answer choice is correct.

hence, our final answer is y=(x - 1)^2 + 1