Here's the question you clicked on:
ashleyb
Can someone please explain to me the steps to graphing quadratics?? im very confused
You simply need the vertex and a few points that are on the right and left of the vertex
Here's a plot of points |dw:1342991570563:dw|
here's the vertex |dw:1342991631719:dw|
Now draw a curve through all the points to graph the parabola |dw:1342991670542:dw|
This is of course an example, so your vertex may be in a different location
but how do u get the points?
you plug in arbitrary values of x to get corresponding values of y (this is to get any point on the parabola)
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
oh okay...that makes sense thankyou
you're welcome