Simplify the difference quotients 
and 
for the following function. Rationalize the numerator when necessary.f(x) = 5x2 + 6x + 1
A. 10x2 + h; 25x + 25a + 6
B. 10x + 5h + 6; 5x + 5a + 6
C. 10x + 10h + 6; 5x - 5a - 6
D. 10x + 6h + 1; 10x + 10a + 6
Answer: B
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Determine the quadrant(s) in which (x, y) is located so that the condition(s) is (are) satisfied. ? xy< -4 ?
A. Quadrant II or III B. Quadrant I or III C. Quadrant III or IV D. Quadrant II or IV E. Quadrant I or IV
Solve the system by graphing.2x + y = 23y = 4x + 5
A. {(17, 3)} B. {(17, -11)} C. {(3, 17)} D. {(2, 13)}
Solve the problem.The medians of a triangle intersect at a point. The distance from the vertex to the point is exactly two-thirds of the distance from the vertex to the midpoint of the opposite side. Find the exact distance of that point from the vertex A(3, 4) of a triangle, given that the other two vertices are at (0, 0) and (8, 0).
A. 2
B. 
C. 
D. 
For the given functions f and g, find the requested composite function value.f(x) = 
, g(x) = 2x;
Find (f ? g)(1).
A. 
B. 2
C. 2
D. 2