Chapter 9.3, Problem 7E

Table 2 shows a recent graduate’s credit card balance each month after graduation. a. Use exponential regression to fit a model to these data. b. If spending continues at this rate, what will the graduate’s credit card debt be one year after graduating?

An exponential model y = a · bº passes through the points (0, 3) and (3, 81). What are the values of a and b? a = and b =

The equation of the exponential function that models a data set is y = 6.8(1.03)* Determine the range of this function. Select one: O a. yly> 1.03, y e R} O b. (ylye R} Oc. yly> 6.8, y e R) Oc. O d. yly> 0, y e R)

rtb 6) The graph of the exponential function f(x)= a* is shown below. Find the EXACT values of a and b. У (43) (2,1) х

question is in the pic!

I need help with this problem please.

Pls help ASAP. Pls show all work.

Revenues from an electronic device are shown in the table. Let P be the revenue (in millions of dollars) from sales of the device in the year that is t years since 2000. Answer questions a. through e. Please show all work. Year. Revenue (in millions of dollars) 2000 1.23 2001 1.08 2002 0.84 2003. 0.79 2004 0.65   a.) Find an approximate equation h(t) = ab^t of the exponential curve that contains the points (0, 1.23) and (4, 0.65). h(t)= Find the exponential regression equation. r(t)= b.) What is the p-intercept of the graph of r? What does it mean in this situation? The p-intercept is = According to the model, r(t), in ______ the revenue from sales of the electronic device was ______ millions of dollars. c.) Use r to estimate the percentage rate of decay of revenues from the electronic device?. ____% d.) Use r to estimate the revenue from the electronic device in 2002. Did you perform interpolation or extrapolation? The revenue from the electronic device in 2002 is approximately _____…

A scientist begins an experiment with 400 bacteria in a petri dish. The population doubles every hour. The function gives the number of bacteria t [Choose] [Choose ] p(t) = 400(1.25)^t m(t) = 400(0.75)^t j(t) 400(2)^t k(t) = 400(0.25)^t hours since the experiment began. %3D A patient takes 400 mg of a medicine. The amount of medicine in her %3D bloodstream decreases by 25% every hour. The function gives the amount of medicine left in her bloodstream after t hours of taking the medicine. In a lake, the population of a species of fish is 400. The population is [Choose ] expected to grow by 25% in the next year. The function gives the number of fish in the lake t years after it was 400.