Quadratic Formulas

Quadratic Formulas

9th Grade

15 Qs

quiz-placeholder

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Quadratic Formulas

Quadratic Formulas

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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15 questions

Show all answers

1.

FILL IN THE BLANK QUESTION

1 min • 1 pt

I have 200 m of fencing to build a rectangular yard. The yard's area (in square meters) as a function of the garden's width (in meters) is as follows:

A(x)=−(x−25)^2+625

What is the maximum possible area?

2.

FILL IN THE BLANK QUESTION

1 min • 1 pt

A mountain goat jumps from a rock cliff. Its height (in meters), x seconds after it jumps, is modeled by:

h(x) = -(x-1)^2+5

How high is the rock cliff?

3.

FILL IN THE BLANK QUESTION

1 min • 1 pt

The same mountain goat jumps from the same rock cliff. Its height (in meters), x seconds after it jumps, is still modeled by:

h(x) = -(x-1)^2+5

What is the maximum height reached by the goat?

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

How many points do you need to know at a minimum to fully define a quadratic function?

1 point

2 points

3 points, and I can use symmetry to find point coordinates across the axis of symmetry

50 points

Tags

CCSS.HSF-IF.C.7A

5.

FILL IN THE BLANK QUESTION

1 min • 1 pt

2a

Tags

CCSS.HSA-REI.B.4B

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Use the quadratic formula to solve 2x2 + 2x - 12?

-2, 3

2, 3

2, -3

-2, -3

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Identify the values of A, B, and C

A=1, B=7, C=-20

A=10, B=7, C=20

A=10, B=-7, C=-20

A=10, B=7, C=-20

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