List the intercepts for the graph of the equation.4x2 + y2 = 4
A. (-2, 0), (0, -1), (0, 1), (2, 0)
B. (-1, 0), (0, -4), (0, 4), (1, 0)
C. (-1, 0), (0, -2), (0, 2), (1, 0)
D. (-4, 0), (0, -1), (0, 1), (4, 0)
Answer: C
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Williams Commuter Air Service realizes a monthly revenue of 
dollars when the price charged per passenger is x dollars.
?
Find the marginal revenue 
.
?
A. 
B. 
C. 
D. 
Find the cross product and determine whether the proportion is true or false.
= 
A. 3120 = 3120; true B. 3120 ? 2700; false C. 2700 = 2700; true D. 8190 ? 360; false
Use the Change-of-Base Formula and a calculator to evaluate the logarithm. Round your answer to three decimal places. log4.2250
A. 2.398 B. 0.260 C. 59.524 D. 3.847
Solve the application problem.The function f(x) = 
models the average cost per unit, f(x), for Electrostuff to manufacture x units of Electrogadget IV. How many units must the company produce to have an average cost per unit of $310?
A. 133 units B. 210 units C. 282 units D. 280 units