Without graphing, tell whether the graphs of the pair of equations are parallel, perpendicular, or neither. 6x + 2y = 815x + 5y = 22
A. Parallel
B. Perpendicular
C. Neither
Answer: A
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Multiply. Change any mixed number to an improper fraction before multiplying.1
? 
A. 
B. 
C. 1
D. 1
Consider the polar equation  FIGURE 1.png)
(a) Find the eccentricity and an equation of the directrix of the conic. (b) Identify the conic. (c) Sketch the curve. >
A partial solution set is given for the equation.
?
?
Find the sum of all the solutions of the equation.
?
A. 
B. 
C. 
D. 
E. none of these
The table lists data that are exactly linear. (i) Find the slope-intercept form of the line that passes through these data points. (ii) Predict y when x = -1.5 and 4.6. 
A. y = 2.2x - 7.9; y = -11.2, y = 2.22 B. y = 2.2x + 7.9; y = 4.6, y = 18.02 C. y = 2.2x - 0.9; y = -4.2, y = 9.22 D. y = -2.2x + 7.9; y = 11.2, y = -2.22