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What is the equation, in standard form, of a parabola that models the values in the table?
x= 2, 0, 4
f(x)= 0, 6, 78
 one year ago
 one year ago
What is the equation, in standard form, of a parabola that models the values in the table? x= 2, 0, 4 f(x)= 0, 6, 78
 one year ago
 one year ago

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Lily_980Best ResponseYou've already chosen the best response.1
f(x) is the same meaning as y.
 one year ago

soty2013Best ResponseYou've already chosen the best response.1
yes and it is called function of x
 one year ago

lilman95Best ResponseYou've already chosen the best response.0
I think you start out f(2)=4a+(2b)+3=0 f(0)=ax^2+bx+c=6 c=6 f(4)=16a+4b+3=78
 one year ago

CliffSedgeBest ResponseYou've already chosen the best response.1
Yes, sortof. You'll need to solve a system of two linear equations.
 one year ago

CliffSedgeBest ResponseYou've already chosen the best response.1
You also have x and yintercepts, which makes it much easier.
 one year ago

CliffSedgeBest ResponseYou've already chosen the best response.1
Start with the standard form template: f(x)=ax^2+bx+c Then put in your known values: f(2) = a(2)^2+b(2)+c = 0 f(0) = a(0)^2+b(0)+c = 6 f(4) = a(4)^2+b(4)+c = 78 From the second equation, you can see that c = 6, so you can substitute that back in the other two.
 one year ago

CliffSedgeBest ResponseYou've already chosen the best response.1
You have the right idea, just be careful about how you write the equations.
 one year ago
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