Solve the absolute value equation.|2x + 4| = 8
A. x = 2
B. x = -6
C. x = -6, 2
D. x = -2, 6
Answer: C
Mathematics
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Graph the equation.y = 3x2 - 2x - 1
A. 
B. 
C. 
D. 
Mathematics
Provide an appropriate response.A student claims that 
always exists, as long as a and b are both positive. Refute this by giving an example of a function for which this is not true.
What will be an ideal response?
Mathematics
Find the limit.
- 5
A. 5 B. -5 C. -1 D. -9
Mathematics
For the smooth curve r(t), find the parametric equations for the line that is tangent to r at the given parameter value 
r(t) = (5 tan t)i - (3 sin t)j + (4 cos2 t)k ; t0 = 
A. x = 5 + 10t, y = -
+ 
t, z = 2 + 4t
B. x = 5 + 10t, y = -
- 
t, z = 2 - 4t
C. x = 5 + 10t, y = -
- 
t, z = 4 - 4t
D. x = 10 + 5t, y = -
- 
t, z= -4 + 2t
Mathematics