Solve the problem.Find all points on the curve y = cos x, 0 ? x ? 2?, where the tangent line is parallel to the line 
A. 
B. (2?, 1)
C. (?, - 1)
D. 
Answer: D
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Find an equation of the parabola described and state the two points that define the latus rectum.Focus at (0, 3); directrix the line y = -3
A. y2 = 16x; latus rectum: (7, 8) and (-7, 8) B. x2 = 12y; latus rectum: (3, 6) and (-3, 6) C. x2 = 16y; latus rectum: (8, 3) and (-8, 3) D. x2 = 12y; latus rectum: (6, 3) and (-6, 3)
First, use front end rounding to estimate each answer. Then find the exact answer.Pat had $954 in her checking account. If she wrote checks for $147 and $335, how much remained in her account?
A. estimate: $900 - $100 - $300 = $500; exact: $472 B. estimate: $1000 - $100 - $300 = $600; exact: $472 C. estimate: $950 - $150 - $340 = $460; exact: $472 D. estimate: $950 - $150 - $300 = $500; exact: $472
Evaluate the exponential expression. Write the answer as an improper fraction where appropriate.(0.7)2
A. 49 B. 0.49 C. 0.35 D. 1.4
Give an expression that generates all angles coterminal with the given angle. Let n represent any integer.
A. 
+ 2n?
B. 
+ 2?
C. 
+ n?
D. 
+ n ? 360°