MM132 - Eighth Examination

1. Solve the quadratic equation: (2x - 1)² + 6 = 6(2x - 1)

1.13, 2.47

1.76, 3.29

1.13, -2.47

1.76, -3.29

1.13, 2.87

2. When solving 2x² - 3x = -3, one of the solution is

0.75 + j0.97

0.97 + j0.75

0.97 - j0.75

-0.75+j0.97

-0.75 - j0.75

3. The vertex of y = 8x² - 6x + 5 is located at x = ______.

-6

3/8

-3/8

3/4

4. Plot the function y = x² - 4x + 1 and determine the minimum value of y.

-3

-4

5. Which of the following functions when plotted will produce the following graph:

wpeC.jpg (9080 bytes)

y = 6x² + 3x

y = -6x² + 3x

y= - 2x²+ x-5

y = 2x²+ x-5

y = - 6x² + 3

6. Solve for x:

7. Solve for x:

8. A Person walks to the top of a mountain at the rate of 2.0 mi/h and down the same way at the rate of 4,0 mi/h. If he walks for 6,0 h, how far is it to the top of the mountain? Select the interval that best fit your answer.

Less than 2 mi

between 3 & 6 mi

Less than 9 mi

Greater than 9 mi

9. Solve for x:

-1

1, -1

None

10. The number 100 is separated into two parts such that if 1/3 of one part is subtracted from 1/4 of the other, the difference is 11. Find the smaller number. Select the interval that best fit your answer.

Less than 20

Less than 25

Greater than 30

Greater than 38

Course: MM132 - 31 Social Security (#########)