The letters x and y represent rectangular coordinates. Write the equation using polar coordinates (r, ?).y = 5
A. r cos ? = 5
B. r sin ? = 5
C. sin ? cos ? = 5
D. r = 5
Answer: B
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Graph both equations using the same set of axes. Graph the equation on the left using a solid line and the function on the right with a dashed line. y = 
x, x = 
y 
A. 
B. 
C. 
D. 
Solve the problem.A ball is tossed upward. Its height after t seconds is given in the table. 
Find a quadratic function to model the data. Use the model to determine when the ball reaches its maximum height, as well as the value of the maximum height.
A. The ball reaches a maximum height of 40 feet in 1.5 seconds. B. The ball reaches a maximum height of 50 feet in 2.1 seconds. C. The ball never reaches a maximum height. D. The ball reaches a maximum height of 44.6 feet in 1.6 seconds.
Find the ordered triple that belongs to the set.{x, 2x - 8, x - 7|x = 3}
A. (-4, -2, 3) B. (-4, 3, -2) C. (3, -2, -4) D. (3, -4, -2)
Evaluate the logarithm.ln (l)
A. 1 B. e C. 0 D. -1