Question

First person to answer gets a medal...Please help me:)
Can someone check my answers i got C
What is the x-coordinate of the vertex for the parabola defined by the function y=-5x^2+9x+5?
A.) -9/10
B.)-9
C.)9/10
D.)5/18

Answer 1

:) You promise a medal.

Answer 2

Well, how are you with completing squares?

Answer 3

lol yess i am having trouble with this problem... idk no about the square?

Answer 4

Your answer is right!!

Answer 5

It is in fact 9/10 or C

Answer 6

yess.. and you get your medal

Answer 7

Thanks :)

Answer 8

no thank you :)