Determine if the lines parallel, perpendicular, or neither.L1: x + y = -8L2: x - y = 7
A. perpendicular
B. neither
C. parallel
Answer: A
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Find the cross product and determine whether the proportion is true or false.
= 
A. 60 = 60; true B. 120 = 120; true C. 30 ? 120; false D. 18 ? 200; false
Solve the problem.On a map of the Fox River, 1 centimeter represents 7 kilometers. If a trail by the river is actually 22.40 kilometers long, what is the length of the river on the map? Round to nearest tenth.
A. 10.4 centimeters B. 3.2 centimeters C. 15.4 centimeters D. 5.2 centimeters
Translate to an equation. Do not solve.27 is what percent of 54?
A. 27 ? p = 54 B. 27 = p ? 54 C. 27 = p ? 54% D. 27% = p ? 54
The graph of the polynomial f(x) is shown in the figure. Estimate the zeros and state whether their multiplicities are odd or even.
A. -4 (odd), -2 (odd), 1 (even), 3 (odd) B. -4 (odd), -2 (even), 1 (even), 3 (odd) C. -4 (even), -2 (even), 1 (odd), 3 (even) D. -4 (even), -2 (odd), 1 (odd), 3 (even)