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anonymous
 one year ago
What is the equation of the following graph?
anonymous
 one year ago
What is the equation of the following graph?

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anonymous
 one year ago
Best ResponseYou've already chosen the best response.0This is just like the other one, except now you have to use the graph to pick out the values. What is the vertex?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0i'm not sure what the roots are...

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0the roots are where the graph crosses the xaxis. For exampledw:1434816829118:dw

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0What is the x where your parabola crosses?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0yes. Now try plugging the roots into the equation. Remember the form is \[y = a(xp)(xq)\] Where p and q are the roots

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0not quite. We're not using the vertex yet or plugging in for x and y... yet. We have to set up the equation first. The root are 1 and 5, so plug in 1 and 5 for p and q to get y = a(x  1)(x  5) *It doesn't matter which is p and which is q*

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0NOW you plug in the vertex to solve for a

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0oh, okay. let me try.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0yes, now solve it for a

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0yes. can I see your final equation to make sure you got the format right?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0sure.2=a(31)(35) a=1/2

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0The a, p, and q are constants that we used properties to find. They are the same for every point on the parabola. The x and y are variables and change for every point, so we need them to stay. So the equation is y = ½(x 1)(x  5)

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0so i solve this equation?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0no, that's the answer

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0thanks again man, this helped.
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