Find the y-intercept of the polynomial function.f(x) = 2x - x3
A. -2
B. 0
C. 2
D. -1
Answer: B
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Solve the problem.The critical-path algorithm is
A. an optimal and inefficient algorithm. B. an approximate and inefficient algorithm. C. an optimal and efficient algorithm. D. an approximate and efficient algorithm. E. none of these
Graph the function defined by a radical expression.y = 12 
A. 
B. 
C. 
D. 
Solve the problem.The point at which a company's costs equals its revenue is the break-even. C represents cost, in dollars, of x units of a product. R represents the revenue, in dollars, for the sale of x units. Find the number of units that must be produced and sold in order to break even. C = 15x + 12,000R = 18x - 6000
A. 12,000 B. 800 C. 6000 D. 545
Determine if the equation specifies a function with independent variable x. If so, find the domain. If not, find a value of x to which there corresponds more than one value of y.xy = -5
A. A function with domain all real numbers except x = 0 B. Not a function; for example, when x = -5, y = ±1