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ciara_chap3
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Suppose a parabola has vertex (5, –3) and also passes through the point (6, 1). Write the equation of the parabola in vertex form.
A. y = (x – 5)2 – 3
B. y = 4(x – 5)2 – 3
C. y = 4(x + 5)2 – 3
D. y = 4(x – 5)2 + 3
 2 years ago
 2 years ago
ciara_chap3 Group Title
Suppose a parabola has vertex (5, –3) and also passes through the point (6, 1). Write the equation of the parabola in vertex form. A. y = (x – 5)2 – 3 B. y = 4(x – 5)2 – 3 C. y = 4(x + 5)2 – 3 D. y = 4(x – 5)2 + 3
 2 years ago
 2 years ago

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ParthKohli Group TitleBest ResponseYou've already chosen the best response.2
Play smart.
 2 years ago

ParthKohli Group TitleBest ResponseYou've already chosen the best response.2
Eliminate the choices that DON'T have the vertex = (5,3).
 2 years ago

ciara_chap3 Group TitleBest ResponseYou've already chosen the best response.0
i know its either a or b but from their i dont know what to do.
 2 years ago

ciara_chap3 Group TitleBest ResponseYou've already chosen the best response.0
just kidding i thought it was 5. so it has to be c since thats the only one with +5
 2 years ago

ParthKohli Group TitleBest ResponseYou've already chosen the best response.2
You're perfectly right. Now check if (6,1) is also a point in both the choices.
 2 years ago

ParthKohli Group TitleBest ResponseYou've already chosen the best response.2
No, it's A or B.
 2 years ago

ciara_chap3 Group TitleBest ResponseYou've already chosen the best response.0
a and b both have 5 its +5
 2 years ago

ParthKohli Group TitleBest ResponseYou've already chosen the best response.2
The standard form is this:\[\rm y = a(x  h)^2 + k\](h,k) is the vertex.
 2 years ago

ParthKohli Group TitleBest ResponseYou've already chosen the best response.2
It's either A or B. Get it now?
 2 years ago

ciara_chap3 Group TitleBest ResponseYou've already chosen the best response.0
yeah i get it now. but how do i check if (6,1) is also a point?
 2 years ago

ParthKohli Group TitleBest ResponseYou've already chosen the best response.2
You plug in 6 for x and 1 for y, then check if both sides are equal.
 2 years ago
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