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1-10 Practice

Posljednje ažuriranje about 3 years ago

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Pitanje 13

13.

What is one coordinate of an x-intercept of the graph of y = (x - 2)(x - 4)?

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Pitanje 14

14.

What is another coordinate of an x-intercept of the graph of y = (x - 2)(x - 4)?

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Pitanje 15

15.

What is the y-intercept of the graph of y = (x - 2)(x - 4)?

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Pitanje 1

1.

Select all true statements about the graph that represents y = 2x(x - 11)

A. Its x-intercepts are at (-2,0) and (11,0).

B. Its x-intercepts are at (0,0) and (11,0).

C. Its x-intercepts are at (2,0) and (-11,0).

D. It has only one x-intercept.

E. The x-coordinate of its vertex is -4.5.

F. The x-coordinate of its vertex is 11.

G. The x-coordinate of its vertex is 4.5.

H. The x-coordinate of its vertex is 5.5.

Pitanje 2

2.

Select all equations whose graphs have a vertex with x-coordinate 2.

A. y = (x - 2)(x - 4)

B. y = (x - 2)(x + 2)

C. y = (x - 1)(x - 3)

D. y = x(x + 4)

E. y = x(x - 4)

Pitanje 3

3.

What is the coordinate of one x-intercept of y = x(x - 2)?

Pitanje 4

4.

What is the coordinate of the other x-intercept of y = x(x - 2)?

Pitanje 5

5.

What is the x-coordinate of the vertex of y = x(x - 2)?

Pitanje 6

6.

What is the coordinate of one x-intercept of y = (x - 4)(x + 5)?

Pitanje 7

7.

What is the coordinate of the other x-intercept of y = (x - 4)(x + 5)?

Pitanje 8

8.

What is the x-coordinate of the vertex of y = (x - 4)(x + 5)?

Pitanje 9

9.

What is the coordinate of one x-intercept of y = -5x(3 - x)?

Pitanje 10

10.

What is the coordinate of the other x-intercept of y = -5x(3 - x)?

Pitanje 11

11.

What is the x-coordinate of the vertex of y = -5x(3 - x)?

Pitanje 12

12.

Which one is the graph of the equation y = (x - 3)(x + 5)?

Graph A

Graph B

Graph C

Graph D

Pitanje 16

16.

A company sells calculators. If the price of the calculator is p, and the company estimates it will sell 10,000 - 120p calculators, write an expression that repesents the revenue in dollars from selling calculators if a calculator is priced at p dollars.

Pitanje 17

17.

Show the (s + t)² is equivalent to s² +2st + t².