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1-17 Practice

Posljednje ažuriranje about 3 years ago

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Pitanje 1

1.

Write an expression to define function f in vertex form.

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Pitanje 6

6.

How far above the ground was the ball when kicked?

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Pitanje 7

7.

What was the initial upward velocity of the ball?

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Pitanje 2

2.

Which of the following correctly compares the graph of y = x² - 5 to y = x²?

A. It's moved right 5.

B. It opens down instead of up.

C. It's moved up 5.

D. It's moved down 5.

E. It's vertically stretched by 5.

Pitanje 3

3.

Select all options below that correctly compare the graph of y = (x+2)² - 8 to y = x²?

A. It's moved right 2.

B. It opens down instead of up.

C. It's moved down 8.

D. It's moved left 2.

E. It's vertically stretched by 8.

F. It's moved up 8.

G. It's moved up 2.

Pitanje 4

4.

Which equation represents the graph of y = x² + 2x - 3 moved 3 units to the left?

A. y = x² + 2x - 6

B. y = (x + 3)² + 2x - 3

C. y = (x + 3)² + 2(x + 3)

D. y = (x + 3)² + 2(x + 3) - 3

Pitanje 5

5.

Select all the equations with a graph whose vertex has both a positive x- and a positive y-coordinate.

A. y = x²

B. y = (x - 1)²

C. y = (x - 3)² + 2

D. y = 2(x - 4)² - 5

E. y = 0.5(x + 2)² + 6

F. y = -(x - 4)² + 3

G. y = -2(x - 3)² + 1

Pitanje 8

8.

Why is the coefficient of the squared term negative?

Pitanje 9

9.

What is the vertex of of the function f defined by f(x) = -(x - 3)² + 6?

Pitanje 10

10.

What is the coordinate for the y-intercept of the function f(x) = -(x - 3)² + 6?

Pitanje 11

11.

Using the y-intercept, what is one other coordinate of the graph?