Find the center-radius form for the circle having the given endpoints of a diameter.(-5, 1) and (-1, -7)
A. (x - 3)2 + (y - 3)2 = 40
B. (x - 3)2 + (y - 3)2 = 20
C. (x + 3)2 + (y + 3)2 = 20
D. (x + 3)2 + (y + 3)2 = 40
Answer: C
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Find the greatest common factor.14x, 21
A. 42x B. 7x C. 14 D. 7
Arrange the group of numbers in order, from least to greatest.9
, 9.91, 9.091, 1
A. 9.091, 9
, 9.91, 1
B. 9.91, 9
, 9.091, 1
C. 1
, 9.91, 9.091, 9
D. 1
, 9.091, 9
, 9.91
Solve the problem.The graph depicts a relationship between scores achieved on an unspecified standardized test and family income. Find the slope of the line.
A. 100 points per thousand dollars B. 10.1 points per thousand dollars C. 1000 points per thousand dollars D. 1 point(s) per thousand dollars
Determine the domain and range.This graph shows the speed of a car, in miles per hour (mph), at various times after a driver applies the brakes. 
A. Domain: {4, 4, 6, 8, 10}; range: {45, 30, 20, 10, 5} B. Domain: {45, 30, 20, 10, 5}; range: {2, 4, 6, 8, 10} C. Domain: {2, 4, 6, 8, 10}; range: {45, 30, 20, 10, 5} D. Domain: {2, 4, 6, 8}; range: {45, 30, 20, 10}