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HELP ASAP!! QUADRATIC FUNCTIONS!!

what is the equation in standard form of these points?

HELP ASAP!! QUADRATIC FUNCTIONS!! what is the equation in standard form of these points-example-1
User EJK
by
6.1k points

2 Answers

11 votes
y=-x²+5x


Step by step explanation This is how I got the answer to your question and I gave you the solution I hope this helps you out
User Ruchin Somal
by
6.5k points
6 votes

Answer:


-x^2+5x

Explanation:

Let the quadratic be
ax^2+bx+c. Therefore, if you plug in the first point,


a(0)^2+b(0)+c=0\\c=0

and if you plug in the 2 other points,


a-b=-6\\4a+2b=6

Multiply the first equation by 2:


2a-2b=-12

and add it up to the second equation:


6a=-6\\a=-1

Lastly, plug in a for the first equation:


-1-b=-6\\b=5

Therefore, the final quadratic is
\boxed{-x^2+5x}

User Tyssen
by
7.1k points
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