Determine whether the relation represents a function. If it is a function, state the domain and range.
A. function
domain: {snake, cat, dog}
range: {Alice, Brad, Carl}
B. function
domain: {Alice, Brad, Carl}
range: {snake, cat, dog}
C. not a function
Answer: C
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Use the quadratic formula to write the solution of the quadratic equation
.
?
A. 
B. ?
C. ?
D. ?
Determine if the given integer value for the variable is a solution to the equation.6x + 3 = 4x + 18; 8
A. solution B. not a solution
Find any relative extrema.f(x, y) = x2 + y2
A. f(0, 0) = 0, relative maximum B. f(1, 1) = 2, relative maximum C. No relative extrema D. f(0, 0) = 0, relative minimum
Solve.A train must cover a distance of 1472 miles. The velocity, in miles per hour, of the train is 
where t is the time, in hours, to complete the trip. If the train completes the trip in 16 hours, what is its velocity?
A. 92 miles per hour B. 87 miles per hour C. 23,552 miles per hour D. 0.01 miles per hour