State whether the function is a polynomial function or not. If it is, give its degree.f(x) = 
A. Yes; degree 1
B. Not a polynomial
C. Yes; degree 6
D. Yes; degree 3
Answer: D
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Sketch the surface z = f(x,y).f(x, y) = 3 - x2
A. 
B. 
C. 
D. 
Provide an appropriate response.Use the max-min inequality to find upper and lower bounds for the value of 
dx.
What will be an ideal response?
When money is spent on goods and services, those that receive the money also spend some of it. The people receiving some of the twice-spent money will spend some of that, and so on. Economists call this chain reaction the multiplier effect. In a hypothetical isolated community, the local government begins the process by spending D dollars. Suppose that each recipient of spent money spends 100c% and saves 100s% of the money that he or she receives. The values c and s are called the marginal propensity to consume and the marginal propensity to save and, of course, c+s=1. The number k = 1/s is called the multiplier. What is the multiplier if the marginal propensity to consume is 90%?
Select the correct answer. a. 4 b. 3 c. 6 d. 7 e. 10
Use percents, percent equations, and/or percent proportions to solve the application.A company has 25 franchises in China. This number is expected to increase to 32 over the next three years. What is this percent increase?
A. 7% B. 21.9% C. 72% D. 28%