Solve the inequality by using the method of your choice. State the solution set in interval notation and graph it.x2 - 8 ? 7x
A. [-1, 8]
| -1? | 8 |
B. [-8, -1]
| -8? | -1 |
C. [-8, 1]
| -8? | 1 |
D. [1, 8]
| 1? | 8 |
Answer: A
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Write the number in scientific notation.0.000000062602
A. 6.2602 × 10-7 B. 6.2602 × 10-8 C. 6.2602 × 108 D. 6.2602 × 10-9
Determine the vertex of the graph of f.f(x) = 2(x + 2)2 + 6
A. (-6, 2) B. (2, 6) C. (6, -2) D. (-2, 6)
Write the English phrase as an algebraic expression. Let the variable x represent the number.Seven times a number, increased by eight
A. 7x - 8 B. 7 + 8x C. 7x + 8 D. 7x + 56
Use the REGRESSION feature on a graphing calculator.A study was conducted to compare the average time spent in the lab each week versus course grade for computer students. The results are recorded in the table below. 
Use linear regression to find a linear function that predicts a student's course grade as a function of the number of hours spent in lab.
A. y = 88.6 - 1.86x B. y = 1.86 + 88.6x C. y = 0.930 + 44.3x D. y = 44.3 + 0.930x