Decide whether the relation is a function.{(-5, 8), (-3, -3), (-1, -5), (-1, -7)}
A. function
B. not a function
Answer: B
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Suppose that the functions f and g and their derivatives with respect to x have the following values at the given values of x. Find the derivative with respect to x of the given combination at the given value of x.
, x = 3
A. 
B. 
C. - 
D. 
Without graphing, answer the following questions for the linear system.(i) Is the system inconsistent, are the equations dependent, or neither?(ii) Is the graph a pair of intersecting lines, a pair of parallel lines, or one line?(iii) Does the system have one solution, no solution, or an infinite number of solutions? x - 2y = 52x - 4y = 18
A. (i) neither (ii) intersecting lines (iii) one solution B. (i) dependent (ii) one line (iii) infinite number of solutions C. (i) inconsistent (ii) parallel lines (iii) no solution
Find the range for the data set.15, 15, 15, 19, 22, 22, 22
A. 4 B. 7 C. 19 D. 37
Find the exact value of the following expression without using a calculator.cos (60°)
A. 
B. 
C. 
D. 