Use the definition of continuity to determine whether f is continuous at a.f(x) = 
a = -4
A. Not continuous
B. Continuous
Answer: A
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Graph the function.r(x) = 3
A. 
B. 
C. 
D. 
Solve the problem.A collection of dimes is arranged in a triangular array, with 16 coins in the base row, 15 in the next, 14 in the next, and so forth. Find the value of the collection.
A. $27.20 B. $13.60 C. $6.80 D. $1.36
Find all relative extrema for the function, and then match the equation to its graph.
z = -x4 + y4 + 2x2 - 2y2 + 
A. Relative maxima of 
at (1, 1) and
at (-1, -1); saddle point at (0, 0)
B. Relative maxima of 
at (-1, 1) and
at (1, 1)
C. Relative minima of - 
at (0, 1) and
at (0, -1); saddle point at (0, 0)
D. Saddle points at (0, 0), (-1, 1), (1, -1), (1, 1),
and (-1, -1)
Indicate whether the value of x shown is a solution to the given equation by answering true or false.Value of x: 3
Equation: 10(x - 5) = 25
A. True B. False