Find the intersection.x = -6 + 10t, y = -3 - 7t, z = 6 + 10t ; -4x + 4y - 10z = 8
A. 
B. (-16, 4, -4)
C. 
D. (4, -10, 16)
Answer: A
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The figure shows the velocity v or position s of a body moving along a coordinate line as a function of time t . Use the figure to answer the question. v (ft/sec)
What is the body's acceleration when t = 8 sec?
A. 1 ft/sec2 B. 0 ft/sec2 C. 1.67 ft/sec2 D. -2 ft/sec2
Sketch the graph and show all local extrema and inflection points.y = x
4
A. Local maximum: 
Local minimum: (10, 0)
Inflection point: 
B. Absolute maximum: 
Absolute minimum: (10, 0)
Inflection points: 
C. Local maximum: 
Local minimum: (10, 0)
Inflection points: 
, (10, 0)
D. Absolute minimum: (10, 0)
No inflection points
Find all solutions to the equation.cos x = - 
A. x = 
+ 2n?, x = 
+ 2n?, for integers n
B. x = 
+ 2n?, x = 
+ 2n?, for integers n
C. x = 
+ 2n?, x = 
+ 2n?, for integers n
D. x = 
+ 2n?, x = 
+ 2n?, for integers n
Determine if the relation is a function. Assume x is the independent variable.{(-4, 15), (-3, 8), (0, -1), (3, 8), (5, 24)}
A. Yes B. No