Identify the conic section that the polar equation represents. Describe the location of a directrix from the focus located at the pole.r = 
A. ellipse; The directrix is unit(s) to the left of the pole at x = -
.
B. ellipse; The directrix is unit(s) to the right of the pole at x =
.
C. ellipse; The directrix is unit(s) below the pole at y = -
.
D. ellipse; The directrix is unit(s) above the pole at y =
.
Answer: C
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Graph.
- 
= 1
A. 
B. 
C. 
D. 
Use multiplication to check the answer. If an answer is incorrect, find the correct answer.
A. Correct B. Incorrect; should be 180 C. Incorrect; should be 179 R225 D. Incorrect; should be 179 R115
Convert the measurement to the specified units.8 gallons to cups
A. 256 cups B. 64 cups C. 128 cups D. 32 cups
Evaluate the function at the given value of the independent variable and simplify.f(x) = x2 + 3;f(x + 4)
A. x2 + 7 B. x2 + 16 C. x2 + 8x + 16 D. x2 + 8x + 19