Solve the problem.Decide which of the rational functions might have the given graph. 
A. f(x) = x + 2
B. f(x) = x + 
C. f(x) = x + 
D. f(x) = 2x + 
Answer: B
Mathematics
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Using the horizontal-line test, determine whether the function is one-to-one.
A. one-to-one B. not one-to-one
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Evaluate the function.Find h(2, 5) when h(x, y) = (x + y)3.
A. 133 B. 21 C. 49 D. 343
Mathematics
Use a graphing utility to find the equation of the line of best fit. Round to two decimal places, if necessary.
A. y = 0.85x + 3.07 B. y = 0.75x + 5.07 C. y = 0.75x + 4.07 D. y = 0.95x + 3.07
Mathematics
Solve.Twice the sum of -36 and a number is equal to -12. Find the number.
A. 30 B. 12 C. -42 D. -24
Mathematics