Matched Problems Name College Algebra Section 2.2 Date

[Pages:3]Matched Problems College Algebra Section 2.2

Name _________________________ Date _________________________

Directions Each problem below is similar to the example with the same number in your textbook. After reading through an example in your textbook, or watching one of the videos of that example on MathTV, try the matched problem to check your progress in this section. You can use the QR code at the right to view the videos for this section on your smart phone or tablet. If your smart device does not have a camera, but can access the Internet, go to m. to view the videos for this worksheet.

( ) 1. Solve 3x + 2 2 = 16 .

2. Repeat example 2 from the textbook if the vertical rise of the Lookout Double chair lift is 960 feet and the length of the chair lift is 4,330 feet.

3. Solve x2 + 3x ! 4 = 0 .

4. Solve by completing the square 5x2 ! 3x + 2 = 0 .

5. Solve using the quadratic formula 6x2 + 7x + 2 = 0 .

6. Solve using the quadratic formula x2 + 2x = !8 .

Copyright ? 2012 , Inc. All rights reserved. Created by Judy Barclay Videos at

This worksheet may be printed and used for educational purposes only. It cannot be used for commercial purposes without the written consent of McKeague Textbooks, LLC.

Matched Problems College Algebra Section 2.2

7. Solve using the quadratic formula

x2 2

+

x

=

1 3

.

Name _________________________ Date _________________________

8. Solve (2x -1)(2x -5) = -5.

9. If the shortest side in a 30! ! 60! ! 90! triangle is 2 inches long, find the lengths of the other two sides.

10. An object thrown upward with an initial velocity of 32 feet per second rises and falls according to the equation

s = 32t ! 16t2 where s is the height of the object above the ground at any time t. At what times will the object be 12 feet above the ground?

11. A company produces and sells copies of an accounting program for home computers. The total weekly profit (in dollars) of x copies of the program is P(x) = !500 + 27x ! 0.1x2 . How many copies must

be sold for its weekly profit to be $1,320?

Copyright ? 2012 , Inc. All rights reserved. Created by Judy Barclay Videos at

This worksheet may be printed and used for educational purposes only. It cannot be used for commercial purposes without the written consent of McKeague Textbooks, LLC.

Matched Problems College Algebra Section 2.2

Answers

1. 2 , -2 3

3. 1, -4 5. - 1 , - 2

23

7. -3 ? 15 3

9. 4 inches and 2 3 inches

11. 130 or 140 copies of the program

Name _________________________ Date _________________________

2. 4,222 ft 4. 3 ? i 31

10 6. !1? i 7

8. 3 ? i 2

10.

1 second and

3 seconds

2

2

Copyright ? 2012 , Inc. All rights reserved. Created by Judy Barclay Videos at

This worksheet may be printed and used for educational purposes only. It cannot be used for commercial purposes without the written consent of McKeague Textbooks, LLC.

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