Determine whether the relation is a function.{(-5, -1), (-2, -1), (1, 9), (7, 2)}
A. Not a function
B. Function
Answer: B
Mathematics
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Find the amplitude, period or displacement.Find the period of y = 4 cos 
.
A. 
B. ?
C. 4
D. 
Mathematics
Solve by the method of your choice.(x + 8)(x - 3) = 2
A. {-5 ± 
}
B. {5 ± 
}
C. 
D. 
Mathematics
Solve the problem.It is determined that 75% of the student body of Piper School attended an 
assembly. If 129 students attended the assembly, how many students are enrolled at the school?
A. 169 B. 172 C. 184 D. 176
Mathematics
Solve the equation.-4y + 6 = -4y
A. No solution B. All real numbers
Mathematics