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ashleyb
Group Title
Can someone please explain to me the steps to graphing quadratics?? im very confused
 2 years ago
 2 years ago
ashleyb Group Title
Can someone please explain to me the steps to graphing quadratics?? im very confused
 2 years ago
 2 years ago

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jim_thompson5910 Group TitleBest ResponseYou've already chosen the best response.1
You simply need the vertex and a few points that are on the right and left of the vertex
 2 years ago

jim_thompson5910 Group TitleBest ResponseYou've already chosen the best response.1
Here's a plot of points dw:1342991570563:dw
 2 years ago

jim_thompson5910 Group TitleBest ResponseYou've already chosen the best response.1
here's the vertex dw:1342991631719:dw
 2 years ago

jim_thompson5910 Group TitleBest ResponseYou've already chosen the best response.1
Now draw a curve through all the points to graph the parabola dw:1342991670542:dw
 2 years ago

jim_thompson5910 Group TitleBest ResponseYou've already chosen the best response.1
This is of course an example, so your vertex may be in a different location
 2 years ago

ashleyb Group TitleBest ResponseYou've already chosen the best response.0
but how do u get the points?
 2 years ago

jim_thompson5910 Group TitleBest ResponseYou've already chosen the best response.1
you plug in arbitrary values of x to get corresponding values of y (this is to get any point on the parabola)
 2 years ago

jim_thompson5910 Group TitleBest ResponseYou've already chosen the best response.1
to get the vertex, you use the formula x = b/(2a) once you know this x value, you then plug it in to find y
 2 years ago

ashleyb Group TitleBest ResponseYou've already chosen the best response.0
oh okay...that makes sense thankyou
 2 years ago

jim_thompson5910 Group TitleBest ResponseYou've already chosen the best response.1
you're welcome
 2 years ago
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