Solve the problem.Find f(-2) when f(x) = 2x2 - 4x - 6.
A. 22
B. -6
C. 10
D. 6
Answer: C
Mathematics
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Provide an appropriate response.At the two points (x, y) where the graph of the equation x2 + 2xy + y2 = 36 crosses the x-axis, the tangent lines are parallel. Find the common slope of these tangents.
A. 1
B. 
C. -6
D. -1
Mathematics
Solve the equation.
x - 
= -2
A. -5 B. 3 C. 5 D. -3
Mathematics
Sketch one complete cycle of the following function by first graphing the appropriate sine or cosine curve and then using the reciprocal relationships.
?
?
A. ?
B. ?
C. ?
?
D. ?
?
E. ?
?
Mathematics
Obtain an equivalent system by performing the stated elementary operation on the system.Replace the fourth equation by the sum of itself and 3 times the second equation
A. 
B. 
C. 
D. 
Mathematics