Decide which of the following are solutions to this system of equations:
y = x - 5 and y = 3x^2 - 5
(a) (2,7)
(b) (0,-5)
(c) (3,-2)
(d) (2,-3)
Both a and c.
Both b and d.
Only b.
Only d.
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OpenStudy (solomonzelman):
I bet you don't know what your second equation is? IS it a circle, ellipse hyperbola parabola or a line....
I always see you ask identical questions and apparently without moving on... I won't help you, sorry -:(
OpenStudy (solomonzelman):
If you show me the center of the second equation and tell me what it is, I'll help you.
OpenStudy (anonymous):
It's a line right? and they aren't identical. I got C for my answer
OpenStudy (solomonzelman):
y=x-5 is a line, how about ` y=3x²-5 ` ?
OpenStudy (solomonzelman):
do not look at the line, because all of points in the answer choices are on the line.
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OpenStudy (anonymous):
Proabola
OpenStudy (solomonzelman):
Yes
OpenStudy (solomonzelman):
do not look at the line, because all of points in the answer choices are on the line.
OpenStudy (camerondoherty):
*Parabola
OpenStudy (anonymous):
Yes sorry. hah
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OpenStudy (solomonzelman):
y=3x²-5
y=3(x-0)²-5
y=3(x-0)²+(-5) → y=a(x-h)²+k where (h,k) is the center.
OpenStudy (solomonzelman):
They gave you (luckily) the point on the line intersecting with the center of the parabola.