Decide whether the relation is a function, and give the domain and range.
A. Not a function; domain: (-?, 0) ? (0, ?); range: (-?, ?)
B. Function; domain: (-?, 0) ? (0, ?); range: (-?, ?)
C. Not a function; domain: (-?, ?); range: (-?, ?)
D. Function; domain: (-?, ?); range: (-?, ?)
Answer: D
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Solve the problem.Find the least squares line through the points 
and 
A. y = -9x - 19 B. y = 11x - 19 C. y = 11x - 21 D. y = -9x - 21
Fill in the blank with one of the words or phrases listed below.
By the 
property of equality, the same number may be added to or subtracted from both sides of an equation without changing the solution of the equation.
A. addition B. multiplication C. evaluating the expression D. distributive
Factor the polynomial completely.x3 - 216
A. (x - 6)(x2 + 36) B. (x + 6)(x2 - 6x + 36) C. (x - 6)(x2 + 6x + 36) D. (x + 216)(x2 - 1)
Find the center-radius form for the circle having the given endpoints of a diameter.(-5, 0) and (5, 0)
A. x2 + y2 = 25 B. (x - 5)2 + y2 = 5 C. x2 + y2 = 5 D. (x - 5)2 + y2 = 25