Find an equation of the tangent line at x = a.y = x2 - x; a = -4
A. y = -9x + 12
B. y = -9x - 16
C. y = -9x - 12
D. y = -9x + 16
Answer: B
Mathematics
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Tell whether the points are the vertices of a parallelogram (that is not a rectangle), a rectangle, or neither.(-10, -4), (-1, -18), (13, -9), (4, 5)
A. Neither B. Parallelogram C. Rectangle
Mathematics
Find an equation for the ellipse described. Graph the equation.Vertices at (5, -4) and (5, 8); length of minor axis is 6
A. 
+ 
= 1
B. 
+ 
= 1
C. 
+ 
= 1
D. 
+ 
= 1
Mathematics
Find AB, if possible.
a. 
b. 
c. 
d. 
Mathematics
Find the difference.6.2 less 1.612
A. 5.588 B. 6.000 C. 4.588 D. 4.612
Mathematics