Write a direct variation equation, y = kx, that describes the graph. 
A. y = 
x
B. y = 
x
C. y = - 
x
D. y = - 
x
Answer: B
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Graph using the slope and the y-intercept.-2x - 10y = -2
A. 
B. 
C. 
D. 
Write the objective function that describes the problem.An office manager needs to buy new filing cabinets. Cabinet A costs $5, takes up 5 square feet of floor space, and holds 7 cubic feet of files. Cabinet B costs $8, takes up 8 square feet, and holds 13 cubic feet. He has only $74 to spend and the office has room for no more than 74 square feet of cabinets. Let x equal the number of cabinet A's bought and y equal the number of cabinet B's bought.
A. z = 10x + 3y B. z = 3x + 10y C. z = 13x + 7y D. z = 7x + 13y
Provide an appropriate response.The units-of-production method of depreciation: I. is based on the expected number of units produced by an asset II. ignores salvage value III. is based each time on miles driven and hours of operation
A. III only B. II only C. I only D. both II and III
Solve.An arrow is fired straight up from the ground with an initial velocity of 
per second. Its height, 
in feet at any time t is given by the function 
Find the interval of time for which the height of the arrow is greater than 
A. before 
sec or after 
sec
B. before 
sec
C. after 
sec
D. between 
and 
sec