Use the vertical line test to determine whether the relation is a function.
A. yes
B. no
Answer: A
Mathematics
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Solve the problem.Enrollment in a business seminar increased from 62 people to 74 people. What was the percent of increase? Round to the nearest tenth of a percent.
A. 19.4% B. 80.6% C. 83.8% D. 16.2%
Mathematics
Simplify the expression.-
A. 
B. -
C. -
D. -7x8
Mathematics
Perform the desired operation. Write the answer in the form a + bi.(-5 + i)(-5 - i)
A. -5 B. -24 C. 26 D. 25
Mathematics
Use the definition of equality of complex numbers to find the real numbers x and y such that the equation is true.6 + xi = y + 7i
A. x = -1, y = 6 B. x = 6, y = -1 C. x = 6, y = 7 D. x = 7, y = 6
Mathematics