Find an equation of the line graphed. Write the equation using function notation.
A. f(x) = -2x + 9
B. f(x) = -2x - 9
C. f(x) = 2x - 9
D. f(x) = 2x + 9
Answer: A
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Find parametric equations for the line described below.The line through the point P(-5, 5, -4) parallel to the vector 
A. x = 5t - 5, y = -4t + 5, z = -5t - 4 B. x = -5t + 5, y = 4t - 5, z = -5t + 4 C. x = 5t + 5, y = -4t - 5, z = -5t + 4 D. x = -5t- 5, y = -4t + 5, z = 5t - 4
Evaluate the integral.
A. 
+ C
B. 
+ C
C. [ln (t6 + 7)]2 + C
D. 
+ C
Solve the problem.The following list of digits was taken from a table of random numbers. We will let each set of 5 represent a family of five children. The digits 0-4 represent a girl and the digits 5-9 represent a boy. Use this simulation to estimate the probability that a family of five children will have less than 2 boys.
?
A. 
B. 
C. 
D. 
Convert the given equation to parametric equations. Answers may vary.x2 + y2 = 49
A. x = 49 cos t, y = 49 sin t B. x = cos t, y = sin t C. x = 7 cos t, y = 7 sin t D. x = 7 sin t, y = cos t