Concept explainers
Internet Use The following graph shows the percentage of U.S. households using the Internet at home in 2010 as a function of household income (the data points) and a logistic model of these data (the curve).49
The logistic model is
a. According to the model, what percentage of extremely wealthy households used the Internet?
b. For low incomes the logistic model is approximately exponential. Which exponential model best approximates
c. According to the model, 50% of households of what income used the Internet in 2010? (Round the answer to the nearest $1,000.)
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Chapter 2 Solutions
EBK FINITE MATH AND APPLIED CALCULUS
- 4. Use cylindrical shells to find the volume of the solid generated when the region enclosed by the given curves is revolved about the x-axis. y = √√x, y = 0, y = √√3arrow_forward5 4 3 21 N -5-4-3-2 -1 -2 -3 -4 1 2 3 4 5 -5+ Write an equation for the function graphed above y =arrow_forward6 5 4 3 2 1 -5 -4-3-2-1 1 5 6 -1 23 -2 -3 -4 -5 The graph above is a transformation of the function f(x) = |x| Write an equation for the function graphed above g(x) =arrow_forward
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- -6 -5 * 10 8 6 4 2 -2 -1 -2 1 2 3 4 5 6 -6 -8 -10- The function graphed above is: Concave up on the interval(s) Concave down on the interval(s) There is an inflection point at:arrow_forward6 5 4 3 2 1 -6 -5 -3 -2 3 -1 -2 -3 -4 -5 The graph above is a transformation of the function x² Write an equation for the function graphed above g(x) =arrow_forward6 5 4 3 2 1 -1 -1 -2 -3 -4 A -5 -6- The graph above shows the function f(x). The graph below shows g(x). 6 5 4 3 2 1 3 -1 -2 -3 -4 -5 -6 | g(x) is a transformation of f(x) where g(x) = Af(Bx) where: A = B =arrow_forward
- 5+ 4 3 2 1. -B -2 -1 1 4 5 -1 -2 -3 -4 -5 Complete an equation for the function graphed above y =arrow_forward60 फं + 2 T 2 -2 -3 2 4 5 6 The graph above shows the function f(x). The graph below shows g(x). फ 3 -1 -2 2 g(x) is a transformation of f(x) where g(x) = Af(Bx) where: A = B =arrow_forwardLet f(x) = 4√√ If g(x) is the graph of f(x) shifted up 6 units and right 3 units, write a formula for g(x) g(x)=arrow_forward
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