Decide whether the relation defines a function.
A. Function
B. Not a function
Answer: A
Mathematics
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Solve the equation. Write the answer in a + bi form.z2 + 8 = 0
A. 2
i, -2
i
B. 
+ 
i, - 
- 
i
C. 2i, -2i
D. 2 + 2i, -2 - 2i
Mathematics
Use the substitution method to solve the system. 3x + y = 0-3x + y = -6
A. (-1, -3) B. (-1, 3) C. (1, 6) D. (1, -3)
Mathematics
Write the vector in the form 
A. 
B. 
C. 
D. 
Mathematics
Assume x and y are functions of t. Evaluate dy/dt.xy + x = 12; 
= -3, x = 2, y = 5
A. 9 B. 3 C. -9 D. -3
Mathematics