SKforlife
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
Delete
Share
This Question is Closed
nickymarden
Best Response
You've already chosen the best response.
3
1. -2, 5, -4
SKforlife
Best Response
You've already chosen the best response.
0
Do you know the second one?
nickymarden
Best Response
You've already chosen the best response.
3
\[Xv= (-b)/2a \]
\[Yv=-\Delta/4a\]
MHAMMED
Best Response
You've already chosen the best response.
0
x= -b/(2a) y(-b/2a)=
nickymarden
Best Response
You've already chosen the best response.
3
\[\Delta=b^2-4ac\]
MHAMMED
Best Response
You've already chosen the best response.
0
Did you get it?
SKforlife
Best Response
You've already chosen the best response.
0
no i dont know the anwser ? lol
nickymarden
Best Response
You've already chosen the best response.
3
just put the numbers into the formulas and you'll get the answers..
MHAMMED
Best Response
You've already chosen the best response.
0
the answer is ( 1,3)
MHAMMED
Best Response
You've already chosen the best response.
0
\[a=-3 , b=6, x=(-6)/2(-3)=1, y(1)= -3(1)^2+6(1)=3\]
MHAMMED
Best Response
You've already chosen the best response.
0
So the vertex is (1,3)