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OpenStudy (anonymous):
in y=2x²-3 what is b = to?
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OpenStudy (anonymous):
is it 1 or 0
OpenStudy (anonymous):
y is -1.
OpenStudy (anonymous):
how is it -1?!?!?!
OpenStudy (anonymous):
if you mean put \[y=2x^2-3\] in the form \[y=ax^2+bx+c\] then \[a=1,b=0,c=-3\]
OpenStudy (anonymous):
if you are still looking for the vertex is it is at (0,-3)
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Directrix (directrix):
b = 0
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