Determine whether the relation is a function.{(-7, -3), (-7, 8), (2, -1), (5, -9), (9, 2)}
A. It is a function.
B. It is not a function.
Answer: B
Mathematics
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Multiply.(-1)(-5.78)
A. 5.78 B. 1 C. -1 D. -5.78
Mathematics
Find the standard-form equation for an ellipse which satisfies the given conditions.An ellipse with y-intercepts ±6; foci at 
and 
.
A. 
+ 
= 1
B. 
+ 
= 1
C. 
+ 
= 1
D. 
+ 
= 1
Mathematics
Simplify.
÷ 
A. 
B. 
C. 
D. 
Mathematics
Find the domain of the rational function.h(x) = 
A. all real numbers B. {x|x ? 0, x ? -64} C. {x|x ? -8, x ? 8, x ? -3} D. {x|x ? -8, x ? 8}
Mathematics