Graph by plotting points. Plot at least three points for the graph.2x - 4y = 28
A. 
B. 
C. 
D. 
Answer: C
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Describe the graph of the polar equation. 2r cos ? + r sin ? = 4
A. Vertical line passing through (2, 0) B. Line with slope 4 and y-intercept (0, 2) C. Parabola with vertex (2, 4) opening upward D. Line with slope -2 and y-intercept (0, 4)
Solve the problem.In a certain location, the highest temperature recorded was 101°F. The lowest temperature recorded was 138 degrees less than the highest. What was the lowest temperature?
A. -37°F B. -138°F C. 37°F D. 0°F
Solve the problem.Island A is 150 miles from island B. A ship captain travels 250 miles from island A and then finds that he is off course and 160 miles from island B. What angle, in degrees, must he turn through to head straight for island B? Round the answer to two decimal places. (Hint: Be careful to properly identify which angle is the turning angle.)
A. 34.92° B. 110.17° C. 55.08° D. 145.08°
Use the product rule to multiply.
? 
A. 5
B. 15
C. 
D. 2