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Mathematics 18 Online
OpenStudy (anonymous):

use the vertex and intercepts to sketch the graph of each quadratic function. Give the equation of the parabola's axis of symmetry. use the graph to determine the function's domain and range. y-1=(x-3)^2 f(x)=2(x+2)^2-1 f(x)=4-(x-1)^2 f(x)=x^2-2x-3

hero (hero):

Well, you better start graphing

OpenStudy (anonymous):

ill graph seperately

hero (hero):

This is a project. You'd may have been better off posting one at a time

OpenStudy (anonymous):

i just want to know how to finds the vertex

OpenStudy (anonymous):

and intercepts

hero (hero):

-b/2a

OpenStudy (anonymous):

so that equation will helkp me find the vertex

hero (hero):

It will help you find x. When you find x, you'll be able to find y

OpenStudy (anonymous):

ok wat about the interecepts

hero (hero):

For the intercepts, set y =0 and solve for x

OpenStudy (anonymous):

okk can u do an example

hero (hero):

Well, it's probably best if you graph these to find the intercepts

OpenStudy (anonymous):

ok

hero (hero):

Intercepts occur where the function cross the x or y axis

OpenStudy (anonymous):

i know

hero (hero):

Good

OpenStudy (anonymous):

wat bout vertex

hero (hero):

Use x = -b/2a or just graph it

OpenStudy (anonymous):

ok thnkss

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