Convert the rectangular equation to a polar equation that expresses r in terms of ?.8x - 9y + 1 = 0
A. 8 cos ? - 9 sin ? = -1
B. 8 cos ? - 9 sin ? = 1
C. r = 
D. r = 
Answer: D
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Determine whether the positive or negative sign makes the equation correct. Do not use a calculator.sin 114.5° = ±
A. Positive B. Negative
Translate the phrase into a mathematical expression and then find the result.Add 3953 cars and 1048 cars
A. 3953 - 1048; 2905 cars B. 3953 + 1048; 5001 cars C. 3953 - 1048; 3824 cars D. 3953 + 1048; 4503 cars
Simplify. Assume that all variables represent positive real numbers.
A. 5xy
)
B. 5xy
C. 5xy
D. 5xy
)
Use the information given to draw a bar graph. Clearly label the bars. The following table shows the number of visitors at a jazz festival in various years. Make a vertical bar graph to illustrate the data. 
What will be an ideal response?