Convert the polar equation to rectangular form. Identify the curve.r = 5
A. x2 - y2 = 25; circle centered at (0, 0) with radius 5
B. x + y = 25; a line with slope 5 and y-intercept 0
C. x + y = 5; a line with slope 5 and y-intercept 0
D. x2 + y2 = 25; circle centered at (0, 0) with radius 5
Answer: D
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Identify the conic that the polar equation represents. Also, give the position of the directrix.r = 
A. hyperbola, directrix perpendicular to the polar axis 3 right of the pole B. ellipse, directrix perpendicular to the polar axis 3 left of the pole C. hyperbola, directrix perpendicular to the polar axis 3 left of the pole D. ellipse, directrix perpendicular to the polar axis 3 right of the pole
Determine whether or not the triangles are similar.
A. Not similar B. Similar
Solve the problem.The formula P = 153e0.033t models the population of a particular city, in thousands, t years after 1998. When will the population of the city reach 199 thousand?
A. 2007 B. 2006 C. 2008 D. 2009
Match the graph to the correct inequality.
A. y ? x B. y ? x C. y ? -x D. y ? -x