Yenni works for an electronics store where she receives an 8% commission for every sale that she makes. In
the morning she sells one $450 tv. In the afternoon,
she sells 2 iPhones for $550 each. Read each
statement below and determine whether it is "true" or
"false." Select all that are True.
Justify your selections in the text box below.
(Select all that apply.)
She sells a total of $1550 of electronics
She makes a total of $1550 in commission
She makes $1240 in commission
She makes $124 in commission

hreryryrranswer:

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