[3.5/6 Points] DETAILS PREVIOUS ANSWERS MY NOTES ASK YOUR TEACHER PRACTICE ANOTHE A cable TV company charges a flat rate of $9 per month plus $5.49 for each on-demand movie ordered. Explain why the amount of money you pay in a month is a linear function of the number of on-demand movies you order. Explain your reasoning. The amount of money you pay in a month is a linear function because the flat rate per month changes. The amount of money you pay in a month is a linear function because the amount paid per month has a constant growth rate based on the number of movies ordered. The amount of money you pay in a month is a linear function because the flat rate per month remains unchanged. The amount of money you pay in a month is a linear function because the amount paid per month does not have a constant growth rate based on the number of movies ordered. X Identify the growth rate and initial value. Growth rate 5.49 dollars per | movie v v Initial value 9 dollars Using m for the number of on-demand movies ordered and C for the total monthly cost in dollars, find a formula for C as a linear function of m. c = g+ 5.49m XA hot air balloon launches straight up into the air from the top of a hill with an elevation of 200 feet. Twenty (20) minutes later, the balloon reaches an elevation of 640 feet. What is the growth rate in the balloon's elevation with respect to time? ---Select--- Use E for elevation in feet and t for time in minutes, and find a formula that gives the balloon's elevation as a linear function of the time in minutes that it rises. [0.5/4.5 Points] DETAILS PREVIOUS ANSWERS MY NOTES ASH A company has been hired to clear a quantity of contaminated soil from a site. The table shows the amount of contaminated soil remaining over several different days of the job. Days of Work 0 24 48 Cubic yards of soil | 45,000 | 33,720 22,440 Part 1 How do we know that the amount of contaminated soil remaining is a linear function of the number of days worked? The amount of contaminated soil remaining is always greater than zero, so the function is linear. The number of days worked is always greater than or equal to zero, so the function is linear. As the number of days worked increases the amount of contaminated soil remaining decreases, so the function is linear. The amount of contaminated soil remaining decreases at a constant rate based on the number of days worked, so the function is linear. As the amount of contaminated soil decreases the number of work days increases, so the function is linear. Part 2 State the formula for the amount of contaminated soil remaining, R, as a linear function of the number of days worked, n. 3 X Use the formula to determine the amount of contaminated soil remaining after 31 days of work.he graph below displays the population of a military base over several different years. Population of Military Base Years Since 1930 EIPrt1 Calculate the slope of the line pictured. State appropriate units. '3 People per year v f 1ll'll'hat is the initial value of the line pictured. State appropriate units. .... ..... El Part2 Find a formula for the population of the military base, F', in terms of the number of years, in since 193i]. C Use The formula to predict the population of the military base in 1993. In 1993, the population is predicted to be : people. Use The formula to predict the year in which the population is expected to be 151i]? people. The population is expected to be 120? people in the year