Forms Quadratic Equations

Forms Quadratic Equations

9th Grade

10 Qs

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Forms Quadratic Equations

Forms Quadratic Equations

Assessment

Quiz

Mathematics

9th Grade

Practice Problem

Hard

CCSS
HSA-REI.B.4B, HSF-IF.C.7A

Standards-aligned

Created by

Anthony Clark

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Liam is trying to calculate the y-intercept of a parabolic path of a ball thrown by Arjun, which follows the equation f(x) = 2x2-2x + 1. Can you help him find the y-intercept?

2

-2

1

-1

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What is the vertex of the following equation?
y=5(x-3)2+5

(3,5)

(-3,5)

(3, -5)

(-3,-5)

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

What is the vertex of the graph.  Is it a maximum or minimum?

(-1, 9) minimum

(1, -9) maximum

(1, -9) minimum

(-1, 9) maximum

Tags

CCSS.HSF-IF.C.7A

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

David is trying to calculate the speed of his car which is represented by the equation y = 2x2 - 5x + 10. Can you help Aria and Maya find out what the "b" term of this equation is?

10

-5

2

0

5.

OPEN ENDED QUESTION

1 min • 1 pt

Which Quadratic form is the best for finding the roots of a Quadratic equation? Explain your thinking.

Evaluate responses using AI:

OFF

Answer explanation

Factored Form because the p and q values are the x-intercepts

Tags

CCSS.HSA-REI.B.4B

6.

OPEN ENDED QUESTION

1 min • 1 pt

You want to find the vertex of a Quadratic function. Which form is the most useful for finding the vertex? Explain your thinking.

Evaluate responses using AI:

OFF

Answer explanation

Vertex form because the h and k values provide the values for the ordered pair.

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Sophia is playing a video game where she needs to find a treasure hidden at a vertex of a parabolic path. The coordinates of the vertex are (-7,-1). Which quadratic form should she use to find the treasure?

y = x2 + 14x + 48

y = (x + 7)2 - 1

y = (x + 6)(x + 8)

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