To graph a linear equation, three solutions were found, they were plotted (in black), and a straight line was drawn through them, as shown below.
Construct the table of solutions for this graph.
xy(x, y)-4
-1
1?
?
?(?, ?)
(?, ?)
(?, ?)?
A. xy (x, y)-4 -5 (-4, -5)-1 1 (-1, 1)1 -5 (1, -5)?
B. xy (x, y)-4 -5 (-4, -5)-1 1 (-1, 1)1 5 (1, 5)?
C. xy (x, y)-4 5 (-4, 5)-1 -1 (-1, -1)1 -5 (1, -5)?
D. xy (x, y)-4 5 (-4, 5)-1 1 (-1, 1)1 5 (1, 5)?
E. xy (x, y)-4 -5 (-4, -5)-1 -1 (-1, -1)1 -5 (1, -5)?
Answer: B
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Determine whether the ratios are equal.
A. Yes B. No
The management of ThermoMaster Company, whose Mexican subsidiary manufactures an indoor-outdoor thermometer, has estimated that the total weekly cost (in dollars) for producing x thermometers is 
dollars/year.
?
Find the average cost function C.
?
A. 
B. 
C. ?
D. 
Complete the ordered pairs. Then graph the equation by plotting the points and drawing a line through them.y = x - 4 (0, ), ( , 0), (5, )
A. (0, 4), (-4, 0), (5, 9)
B. (0, 4), (4, 0), (5, -1)
C. (0, -4), (4, 0), (5, 1)
D. (0, -4), (-4, 0), (5, -9)
Solve the problem.Given sin 30° = 
, use trigonometric identities to find the exact value of tan 
.
A. 
B. 3
C. 3
D. 