Solving Quadratics Using Any Method

Solving Quadratics Using Any Method

9th Grade

14 Qs

quiz-placeholder

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Solving Quadratics Using Any Method

Solving Quadratics Using Any Method

Assessment

Quiz

Mathematics

9th Grade

Practice Problem

Hard

CCSS
HSA-REI.B.4B

Standards-aligned

Created by

Anthony Clark

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14 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

A ball is thrown into the air with an upward velocity of 40ft/s. Its height h in feet after t seconds is given by the function :

h(t) = -16t2 + 40t + 10

How many seconds does it take the ball to reach its maximum height?

1.25 seconds

1.4 seconds

2.5 seconds

2 seconds

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

If each mark on the x-axis represents one second, when did the object reach the ground?

2.5 seconds

6 seconds

5.5 seconds

5 seconds

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

The profit from selling local ballet tickets depends on the ticket price. Using past receipts, we find that the profit can be modeled by the function: p= -15x² +600x +60 What is the maximum profit you can make from selling tickets?

$6060

$20

$600

$10,250

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Rafael drops a ball from a third-story window. This equation represents the approximate height, h, in meters, of the ball above the ground after it falls for t seconds. When is the ball at ground level?

only at t = 0 seconds

only at t = 3 seconds

only at t = 9 seconds

at both t = 0 seconds and t = 3 seconds

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

When using the Quadratic Formula method, what are a, b, and c for the equation: 9x2-x= 0?

a=9, b = -1, c =0

a=1, b = 0, c =0

a=9, b = 0, c =0

a=9, b = 1, c =0

Tags

CCSS.HSA-REI.B.4B

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Which of the following cannot be solved with the Square Root method?

x2-9=0

x2-15=0

x2-9x=0

6x2-15=0

Tags

CCSS.HSA-REI.B.4B

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

When using the Completing the Squares method, what number would fill in the blank:


x2+12x ______ = 8 + _______

6

36

12

16

Tags

CCSS.HSA-REI.B.4B

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