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Mathematics 19 Online
OpenStudy (bekkah323):

graph: f(x)=2x^2-8x+9

OpenStudy (agent0smith):

You could graph it by making a table of values. It should look like this: https://www.google.com/search?q=f(x)%3D2x%5E2-8x%2B9&oq=f(x)%3D2x%5E2-8x%2B9&aqs=chrome.0.69i57j0j69i62l3.1730j0&sourceid=chrome&ie=UTF-8

OpenStudy (bekkah323):

what do you mean table of values.

OpenStudy (agent0smith):

Make a list of x values, and find the y value for each one. Then plot them on a graph.

OpenStudy (bekkah323):

for the x value would i plug in the value for both x's in the function

OpenStudy (agent0smith):

Yep. Do it like this \[\Large y = 2( \text{ } )^2 - 8 ( \text{ } ) +9\] Put the x value into the brackets

OpenStudy (bekkah323):

for example one would be 0,9 right?

OpenStudy (agent0smith):

Yep.

OpenStudy (bekkah323):

ok, i got it thank you!

OpenStudy (agent0smith):

You're welcome :)

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