algebra quick check

User Generated

Bssvpvnyornhgll123

Mathematics

Description

1. 

What is the vertex of the graph?

A coordinate plane with a parabola, or U-shaped graph that opens down. The graph passes through (0, 2) and (2, 2).

 (1 point)

2. 

Is the vertex of the graph in problem 1 a maximum or a minimum?

 (1 point)

3. 

The following item has been reviewed and is scheduled to be updated. Students will receive credit for any response to the following. 

A ball is thrown into the air with an initial upward velocity of 45 ft/s. Its height (h) in feet aftert seconds is given by the function h = –16t² + 45t + 6. After about how many seconds will the ball hit the ground?

 (1 point)

4. 

A ball is thrown into the air with an initial upward velocity of 60 ft/s. Its height (h) in feet aftert seconds is given by the function = –16t² + 60t + 6. What will the height be at t = 3 seconds?

 (1 point)

5. 

Solve. x² – 121 = 0

 (1 point)

6. 

Solve by factoring. m² + 8m + 7 = 0

 (1 point)

7. 

Solve by factoring. n² + 2n – 24 = 0

 (1 point)

8. 

One more rectangular-shaped piece of metal siding needs to be cut to cover the exterior of a pole barn. The area of the piece is 30 ft². The length is 1 less than 3 times the width. How wide should the metal piece be? Round to the nearest hundredth of a foot.

 (1 point)

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