Find the domain and range of the relation.{(9, -7), (5, -5), (0, 0), (5, 5), (9, 7)}
A. domain: (-?, ?), range: {-7, -5, 0, 5, 7}
B. domain: {0, 5, 9}, range: {-7, -5, 0, 5, 7}
C. domain: {-7, -5, 0, 5, 7}, range: {0, 5, 9}
D. domain: (-?, ?), range: (-?, ?)
Answer: B
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Suppose 
is a linear function of 
. The slope is 2.89. An increase of 7 units in 
causes what change in
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Rewrite the expression in terms of sin ? and cos ?.tan ?(cot ? - cos ?)
A. 1 B. 1 - sin ? C. -sec2 ? D. 0
Use a calculator to compute. Round the result to two decimal places.-11,100.21 - 95,734.841
A. 84,634.63 B. -84,634.63 C. -11,100.21 D. -106,835.05
Determine whether the pair of lines are parallel, perpendicular, or neither.20x + 4y = 68x = 40y + 10
A. parallel B. perpendicular C. neither