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1-7 Practice

Last updated almost 3 years ago

11 questions

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Question 1

1.

Write the expression (x + 4)(x - 1) in standard form.

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Question 9

9.

What is the maximum height of Rock A? (Round to the nearest tenth.)

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Question 10

10.

What is the maximum height of Rock B? (Round to the nearest tenth.)

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Question 11

11.

Explain how you know that Rock B will reach its maximum height first?

Question 2

2.

Write the expression (2x - 1)(3x - 1) in standard form.

Question 3

3.

Explain why the expression 8 - 6x + x2 is not in standard form.

Question 4

4.

Explain or show why the expression (x - 4)(x - 2) is equivalent to 8 - 6x + x2.

Question 5

5.

Which quadratic expression is written in standard form?

A. (x + 3)x

B. (x + 4)2

C. -x2 - 5x + 7

D. x2 + 2(x + 3)

Question 6

6.

Explain why 3x2 can be said to be in both standard form and factored form.

Question 7

7.

Jada dropped her sunglasses from a bridge over a river. Which equation could represent the distance y fallen in feet as a function of time, t, in seconds?

A. y = 16t2

B. y = 48t

C. y = 180 - 16t2

D. y = 180 - 48t

Question 8

8.

Select all the statements that are true about this situation.

A. The football is thrown from ground level.

B. The football is thrown from 6 feet off the ground.

C. In the function, -16t2 represents the effect of gravity.

D. The outputs of h decrease then increase in value.

E. The function h has 2 zeros that make sense in this situation.

F. The vertex of the graph of h gives the maximum height of the football.