Jessica is asked to write a quadratic equation to represent a function that goes through the point (8, –11) and has a vertex at (6, –3). her work is shown below.

–11 = a(8 – 6)2 – 3
–11 = a(2)2 – 3
–11 = 4a – 3
–8 = 4a
a = –2

after jessica gets stuck, she asks sally to her finish the problem. sally states that jessica needs to write the quadratic equation using the value she found for a, –2, and the point (8, –11).

evaluate jessica’s work and sally’s review to determine which statement is true.

Jessica’s work is correct and Sally’s review is incorrect

Step-by-step explanation:

I'm just assume it's a vertical parabola

we know that

The equation of a vertical parabola in vertex for is equal to

where

(h,k) is the vertex

In this problem we have

point

substitute

To find the equation using the value of a and the vertex point

so

therefore

Jessica’s work is correct and Sally’s review is incorrect

this was already solved by me with a different person. if you look it up in the search bar at the top of the page, you will get the answer.

step-by-step explanation:

answer: there are 453.592 grams in a pound.