Question

PLEASE HELP WITH THESE TWO QUESTIONS
1...What are the values of a, b, and c in the function? List them in order with commas, such as 1,-2,3.
y = -2x2 + 5x - 4
2...What is the vertex for the function? (You will want to find the axis of symmetry first.) Write as an ordered pair, leaving no spaces, such as (1,-4).
y = -3x2 + 6x

Answer 1

1. -2, 5, -4

Answer 2

Do you know the second one?

Answer 3

\[Xv= (-b)/2a \]
\[Yv=-\Delta/4a\]

Answer 4

x= -b/(2a) y(-b/2a)=

Answer 5

\[\Delta=b^2-4ac\]

Answer 6

Did you get it?

Answer 7

no i dont know the anwser ? lol

Answer 8

just put the numbers into the formulas and you'll get the answers..

Answer 9

the answer is ( 1,3)

Answer 10

\[a=-3 , b=6, x=(-6)/2(-3)=1, y(1)= -3(1)^2+6(1)=3\]

Answer 11

So the vertex is (1,3)