Use the definition of continuity to determine whether f is continuous at a.f(x) = 
a = -2
A. Not continuous
B. Continuous
Answer: A
Mathematics
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What property of whole-number multiplication justifies the equality?0 ? 38 = 0
A. Closure property B. Commutative property C. Multiplicative-identity property D. Multiplication-by-zero property
Mathematics
The graph of a certain function y = f(x) and the zero of that function is given. Using this graph, find a) the x-intercept of the graph of y = f(x) and b) the solution to the equation f(x) = 0.
A. a. 5 b. x = 5 B. a. 0 b. x = 5 C. a. 5 b. x = 0 D. a. -5 b. x = -5
Mathematics
Test the equation for symmetry with respect to the x-axis, the y-axis, and the origin.y = -2x3 + 9x
A. x-axis, origin B. origin only C. x-axis, y-axis D. x-axis only
Mathematics
Factor the trinomial completely.
A. 
B. 
C. 
D. 
E. not factorable
Mathematics