Answers LAUSD-Algebra II A Prescriptive - SummerPerforming Operations with Complex Numbers

Transformations of Quadratic Functions Answers

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Which equation has a graph that is a parabola with a vertex at (–1, –1)?

y = (x – 1)2 + 1

y = (x – 1)2 – 1

y = (x + 1)2 + 1

y = (x + 1)2 – 1

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Which equation is y = –3x2 – 12x – 2 rewritten in vertex form?

y = –3(x + 2)2 + 10

y = –3(x – 2)2 + 10

y = –3(x + 2)2 – 14

y = –3(x – 2)2 – 2

How does the graph of y = a(x – h)2 + k change if the value of h is doubled?

The vertex of the graph moves to a point twice as far from the x-axis.

The vertex of the graph moves to a point twice as far from the y-axis.

The vertex of the graph moves to a point half as far from the x-axis.

The vertex of the graph moves to a point half as far from the y-axis.

Which phrase best describes the translation from the graph y = 6x2 to the graph of y = 6(x + 1)2?

6 unit left

6 unit right

1 unit left

1 unit right

What is the first step when rewriting y = –4x2 + 2x – 7 in the form y = a(x – h)2 + k?

2 must be factored from 2x – 7

–4 must be factored from –4x2 + 2x

x must be factored from –4x2 + 2x

–4 must be factored from –4x2 – 7

Christian is rewriting an expression of the form y = ax2 + bx + c in the form y = a(x – h)2 + k. Which of the following must be true?

h and k cannot both equal zero

k and c have the same value

the value of a remains the same

h is equal to one half –b

Which equation is y = 6x2 + 12x – 10 rewritten in vertex form?

y = 6(x + 1)2 – 11

y = 6(x + 1)2 – 10

y = 6(x + 1)2 – 4

y = 6(x + 1)2 – 16

Which equation has a graph that is a parabola with a vertex at (5, 3)?

y = (x – 5)2 + 3

y = (x + 5)2 + 3

y = (x – 3)2 + 5

y = (x + 3)2 + 5

Which equation is y = 2x2 – 8x + 9 rewritten in vertex form?

y = 2(x – 2)2 + 9

y = 2(x – 2)2 + 5

y = 2(x – 2)2 + 1

y = 2(x – 2)2 + 17

What is the first step when rewriting y = 6x2 + 18x + 14 in the form y = a(x – h)2 + k?

16 must be factored from 18x + 14

x must be factored from 6x2 + 18x

6 must be factored from 6x2 + 14

6 must be factored from 6x2 + 18x

Did you find these answers helpful?

Transformations of Quadratic Functions Answers

0 verified answers

Free Preview

Which equation has a graph that is a parabola with a vertex at (–1, –1)?

y = (x – 1)2 + 1

y = (x – 1)2 – 1

y = (x + 1)2 + 1

y = (x + 1)2 – 1

Free Preview

Which equation is y = –3x2 – 12x – 2 rewritten in vertex form?

y = –3(x + 2)2 + 10

y = –3(x – 2)2 + 10

y = –3(x + 2)2 – 14

y = –3(x – 2)2 – 2

How does the graph of y = a(x – h)2 + k change if the value of h is doubled?

The vertex of the graph moves to a point twice as far from the x-axis.

The vertex of the graph moves to a point twice as far from the y-axis.

The vertex of the graph moves to a point half as far from the x-axis.

The vertex of the graph moves to a point half as far from the y-axis.

Which phrase best describes the translation from the graph y = 6x2 to the graph of y = 6(x + 1)2?

6 unit left

6 unit right

1 unit left

1 unit right

What is the first step when rewriting y = –4x2 + 2x – 7 in the form y = a(x – h)2 + k?

2 must be factored from 2x – 7

–4 must be factored from –4x2 + 2x

x must be factored from –4x2 + 2x

–4 must be factored from –4x2 – 7

Christian is rewriting an expression of the form y = ax2 + bx + c in the form y = a(x – h)2 + k. Which of the following must be true?

h and k cannot both equal zero

k and c have the same value

the value of a remains the same

h is equal to one half –b

Which equation is y = 6x2 + 12x – 10 rewritten in vertex form?

y = 6(x + 1)2 – 11

y = 6(x + 1)2 – 10

y = 6(x + 1)2 – 4

y = 6(x + 1)2 – 16

Which equation has a graph that is a parabola with a vertex at (5, 3)?

y = (x – 5)2 + 3

y = (x + 5)2 + 3

y = (x – 3)2 + 5

y = (x + 3)2 + 5

Which equation is y = 2x2 – 8x + 9 rewritten in vertex form?

y = 2(x – 2)2 + 9

y = 2(x – 2)2 + 5

y = 2(x – 2)2 + 1

y = 2(x – 2)2 + 17

What is the first step when rewriting y = 6x2 + 18x + 14 in the form y = a(x – h)2 + k?

16 must be factored from 18x + 14

x must be factored from 6x2 + 18x

6 must be factored from 6x2 + 14

6 must be factored from 6x2 + 18x

Did you find these answers helpful?

Transformations of Quadratic Functions Answers

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Transformations of Quadratic Functions Answers

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