Question

Hannah wishes to find the vertex of the function x 2 + 3x - 28 = 0 by completing the square. Which of the following equations may be used to identify the coordinates of the vertex?

A.
(x + 1.5)2 = 30.25

B.
(x + 2.25)2 = 30.5

C.
(x + 2.5)2 = 30.75

D.
(x + 2.75)2 = 32.5

Answer 1

Are you very familiar with how to complete a square?

Answer 2

No..

Answer 3

Ok, like this: (try to follow my step by step, ok?)

Answer 4

alright