Question

find the vertex of y=x2+16x+64

Answer 1

Do you need help?

Answer 2

yes

Answer 3

ok, so Do you know what a derivative is?

Answer 4

no, cant remember

Answer 5

May I ask if you've taken calculus?

Answer 6

Sure, no I haven't

Answer 7

Thats probably why. okay so another way to find it without taking the derivative would be to plug the appropriate values into (-b/2a).

Answer 8

Have you see that formula ----> -b/2a?

Answer 9

Still with me?

Answer 10

yes

Answer 11

That took a while.

Answer 12

i know.....

Answer 13

So, If I was to continue, would you leave for 2 hours this time?