Provide an appropriate response.What is generally true for lines with a positive slope and lines with a negative slope?
A. A line with a positive slope rises as we go from right to left, and a line with a negative slope drops as we go from right to left.
B. A line with a positive slope rises as we go from left to right, and a line with a negative slope drops as we go from left to right.
C. A line with a positive slope is perpendicular to a line with a negative slope.
D. A line with a positive slope rises as we go from left to right, and a line with a negative slope drops as we go from right to left.
Answer: B
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A. 6xe3x2 + 1 B. 6xe + 1 C. 6xex2 + 1 D. 6xe2x + 1
Solve the problem.The surface area of a balloon is given by S(r) = 4?r2, where r is the radius of the balloon. If the radius is increasing with time t, as the balloon is being blown up, according to the formula 
find the surface area S as a function of the time t.
A. S(r(t)) = 
?t6
B. S(r(t)) = 
?t9
C. S(r(t)) = 
?t3
D. S(r(t)) = 
?t6
Evaluate the expression without using a calculator. (Assume the variable represents a positive number.)
?
?
A. ?
B. ?
C. ?
D. ?
E. ?
Factor by grouping.2xy - 4x + 7y - 14
A. (2x + 7)(y - 2) B. (2x + 7y)(y - 2) C. (2x - 2)(y + 7) D. (2x + y)(7y - 2)