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OpenStudy (anonymous):
Trying to find the x and y intercepts of
x=3y^2-7
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OpenStudy (anonymous):
Set x equal to 0 to solve for the y intercept. Set y equal to 0 for the x-intercept. Can you take it from there?
OpenStudy (anonymous):
I set y = to 0 and get
x=-4
so the X intercept is (0,-4)?
OpenStudy (anonymous):
How exactly did you get -4? Can you show me what you substituted?
OpenStudy (anonymous):
x=3(0)^2-7
ah but its -7
so X intercept is (-7,0)?
OpenStudy (anonymous):
Exactly.
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OpenStudy (anonymous):
o know the Y intercept is the one I am really having trouble with because when working it I I have the square and a fraction
OpenStudy (anonymous):
Okay.
x=3y^2-7
0=3y^2-7
7=3y^2
7/3=y^2
\[\pm \sqrt{\frac{ 7 }{ 3 }}\]
OpenStudy (anonymous):
Do you need me to explain the process, or are you fine with that?
OpenStudy (anonymous):
I did get that. I typed it in before had into my homework and got it wrong. I typed:
(0,-7/3)(0,7/3)
OpenStudy (anonymous):
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OpenStudy (anonymous):
huh. No clue.
OpenStudy (anonymous):
Have you tried reversing the answers (negative before the positive coordinates)?
OpenStudy (anonymous):
yes
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