Decide whether or not the arrow diagram defines a function.DomainRange 
A. No
B. Yes
Answer: A
Mathematics
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Find the domain and range and describe the level curves for the function f(x,y).f(x, y) = -3x + 8y
A. Domain: all points in the xy-plane; range: all real numbers; level curves: lines 
B. Domain: all points in the xy-plane; range: all real numbers; level curves: lines 
c > 0
C. Domain: all points in the xy-plane; range: real numbers z ? 0; level curves: lines 
c ? 0
D. Domain: all points in the xy-plane; range: real numbers z ? 0 ; level curves: lines 
c ? 0
Mathematics
Decide whether or not the number is a zero of the polynomial.P(x) = -x4 - 4x2 - x + 7; 3
A. No B. Yes
Mathematics
Solve.6(x + 5) - (6x + 30) = 0
A. {0} B. ? C. {5} D. ?
Mathematics
Use the rules for exponents to rewrite the expression and then evaluate the new expression. 
A. 
B. -4
C. 2
D. - 
Mathematics