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Algebra
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OpenStudy (anonymous):
Check my answers?
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OpenStudy (anonymous):
Consider: \[-2x ^{2}+4x -1\]
OpenStudy (anonymous):
1.) This equation is given in: (A) Standard form (B) Vertex form (C) Intercept form (D) No particular form
OpenStudy (anonymous):
2.) This parabola opens: (A) upward (B) right (C) downward (D) left
Directrix (directrix):
The algebraic expression you posted is not an equation.
Is there a y supposed to be with it?
OpenStudy (anonymous):
3.) This parabola will have (A) a maximum (B) a minimum (C) neither a maximum or a minimum
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OpenStudy (anonymous):
4.) This axis of symmetry is (A) x=4 (B) x=-2 (C) x=1 (D) x=-1
OpenStudy (anonymous):
@directrix Sorry. It's y=-2x^2+4x-1
OpenStudy (anonymous):
My answers:
1.) A
2.) B
3.) B
4.) C
OpenStudy (perl):
y = ax^2 + bx + c is called standard form
y = a ( x - h)^2 + k is called vertex form
y = a ( x - r1) ( x - r2) is called intercept form
OpenStudy (perl):
so your equation looks closest to which form?
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OpenStudy (anonymous):
Standard form?
OpenStudy (perl):
yes
OpenStudy (anonymous):
Are my other answers correct? @perl
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