answersLogoWhite

0

so start with y = -x^2 + 5x + 7

then complete the square:

= -(x^2 -5x -7)

= -(x^2 -5x + 4/25 - 7 -4/25)

= -( (x-2/5)(x-2/5) -7 -4/25)

= -(x-2/5)^2 -(7 4/25)

User Avatar

Wiki User

13y ago

Still curious? Ask our experts.

Chat with our AI personalities

RossRoss
Every question is just a happy little opportunity.
Chat with Ross
JordanJordan
Looking for a career mentor? I've seen my fair share of shake-ups.
Chat with Jordan
ViviVivi
Your ride-or-die bestie who's seen you through every high and low.
Chat with Vivi

Add your answer:

Earn +20 pts
Q: What is -x2 plus 5x plus 7 in vertex form?
Write your answer...
Submit
Still have questions?
magnify glass
imp