Determine whether the relation is a function. Give domain and range of the relation.{(-2, 8), (0, 4), (4, 0), (6, -2)}
A. not a function; domain: {-2, 0, 4, 6}, range: {8, 4, 0, -2}
B. function; domain: {-2, 0, 4, 6}, range: {8, 4, 0, -2}
C. not a function; domain: {8, 4, 0, -2}, range: {-2, 0, 4, 6}
D. function; domain: {8, 4, 0, -2}, range: {-2, 0, 4, 6}
Answer: B
Mathematics
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A. -
B. 101
C. 
D. -101
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Evaluate the exponential function at the specified value of x.y = 2x, x = -8
A. 
B. -6
C. 16
D. 
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Find the absolute value.
A. 
B. 
C. 25
D. - 
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Which of the following tables has been completed correctly using exact values? ?
A. ?
| x | cos x | sec x |
| 0° | 0 | undefined |
| 30° |  |  |
| 45° |  |  |
| 60° |  | 2 |
| 90° | 1 | 1 |
?
?
B. ?
| x | cos x | sec x |
| 0° | 1 | 1 |
| 30° |  | 2 |
| 45° |  |  |
| 60° |  |  |
| 90° | 0 | undefined |
?
?
C. ?
| x | cos x | sec x |
| 0° | 0 | undefined |
| 30° |  |  |
| 45° |  |  |
| 60° |  | 2 |
| 90° | 1 | 1 |
?
D. ?
| x | cos x | sec x |
| 0° | 0 | undefined |
| 30° |  | 2 |
| 45° |  |  |
| 60° |  |  |
| 90° | 1 | 1 |
?
E. ?
| x | cos x | sec x |
| 0° | 1 | 1 |
| 30° |  |  |
| 45° |  |  |
| 60° |  | 2 |
| 90° | 0 | undefined |
?
Mathematics