answersLogoWhite

0

y = X^2 + 4X - 3

set polynomial = to 0

X^2 + 4X - 3 = 0

add 3 to each side

X^2 + 4X = 3

complete the square. take linear term (4) halve it, square it and add constant to other side, factor quadratic term

(X + 2)^2 = 7

subtract 7 from each side

(X + 2) - 7 = 0

Vertex = (-2,-7)

My TI-84 confirms this vertex with original equation

User Avatar

Wiki User

14y ago

Still curious? Ask our experts.

Chat with our AI personalities

RafaRafa
There's no fun in playing it safe. Why not try something a little unhinged?
Chat with Rafa
ProfessorProfessor
I will give you the most educated answer.
Chat with Professor
JudyJudy
Simplicity is my specialty.
Chat with Judy

Add your answer:

Earn +20 pts
Q: What is the vertex of y equals x2 plus 4x-3?
Write your answer...
Submit
Still have questions?
magnify glass
imp