Use the vertical line test to determine if the graph is a graph of a function.
A. Yes
B. No
Answer: B
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Find the root. Round to three decimal places if necessary.-
A. 16 B. 4 C. Not real number D. -4
Provide an appropriate response.Estimate the sum by rounding addends to whole numbers. Then use a calculator to find the exact sum: $45.22, $39.99, $4.15, $95.66 and $101.02.
A. $294; $286.04 B. $264; $286.04 C. $286; $286.04 D. $294; $2324.72
Provide an appropriate response.You are asked to change 
to a mixed number. What should be your first step?
A. Multiply 25 and 24. B. Divide 24 by 25. C. Add 25 and 24. D. Divide 25 by 24.
Use the REGRESSION feature on a graphing calculator.Efficiency experts rate employees according to job performance and attitude. The results for several randomly selected employees are given below.
Find the regression line which can be used to predict performance rating if attitude rating is known.
A. y = 92.3 - 0.669x B. y = 2.81 + 1.35x C. y = -47.3 + 2.02x D. y = 11.7 + 1.02x