The polar equation represents a conic with a focus at the pole. Identify the conic.r = 
A. parabola
B. ellipse
C. hyperbola
D. not a conic
Answer: C
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Use the rules for exponents to rewrite the expression and then evaluate the new expression. 
A. 
B. -4
C. 2
D. - 
The graph of a function f is given. Use the graph to answer the question.Find the numbers, if any, at which f has a local minimum. What are the local minima?
A. f has a local minimum at x = -2 and 2; the local minimum is 0 B. f has a local minimum at x = -2; the local minimum is 0 C. f has a local minimum at x = 0; the local minimum is 1 D. f has no local minimum
Provide an appropriate response.Does every straight line have an x-intercept? If not, give an example of an equation whose graph does not have an x-intercept.
What will be an ideal response?
Use the graph to determine the domain and range of the function. 
A. domain: {x|x ? -2} range: {y|y ? 0} B. domain: {x|x > 0} range: {y|y ? -2} C. domain: {x|x ? -2} range: {y|y > 0} D. domain: {x|x ? 0} range: {y|y ? -2}