Convert the polar equation to a rectangular equation.r = 7
A. x = 7
B. y2 = 49
C. x2 + y2 = 49
D. y = 7
Answer: C
Mathematics
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Graph the parabola.y2 = 2x
A. 
B. 
C. 
D. 
Mathematics
Solve each of the following systems of equations. If the system is inconsistent or dependent, say so.4 x - y = 14-4 x + y = -14
A. Dependent B. (2, 4) C. No solution D. (4, 3)
Mathematics
Solve.A car travels 400 miles on level terrain in the same amount of time it travels 160 miles on mountainous terrain. If the rate of the car is 30 miles per hour less in the mountains than on level ground, find its rate in the mountains.
A. 80 mph B. 40 mph C. 50 mph D. 20 mph
Mathematics
Use the vertical line test to determine if the graphs are functions.
A. Yes B. No
Mathematics