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Mathematics 11 Online
OpenStudy (anonymous):

FIND THE ROOTS AND MAKE A GRAPH A. y=x^2+5x+4 B. y=-2x^2+2

OpenStudy (anonymous):

Do you know how to use the quadratic formula?

OpenStudy (anonymous):

nooo i dont get thisss

OpenStudy (anonymous):

Well, the quadratic formula goes like this.\[(-b \pm \sqrt{b ^{2}-4ac})/2a\]

OpenStudy (anonymous):

Each one of those letters corresponds to a variable in the function. \[ax ^{2}+bx+c=y\]

OpenStudy (anonymous):

Do you understand how you might go about solving this?

OpenStudy (anonymous):

yeah soo how do i do the graph

OpenStudy (anonymous):

Plug in a range of values for x and plot the points on a cartesian grid.

OpenStudy (anonymous):

Does that help?

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