1254 PM Sat Dec 2 ImathasJatlonalreasonmgnet Marcos traveled for 2 hours and 17 minutes on Interstate 17 as he drove (without stopping) a distance of 155 miles from Phoenix to Flagsta'. t$$$ LEE] miles Marcos traveled sin e Phx 015 i . 135 - Q . Marcos did not travel at a constant speed on this drive. Which graph could represent how Marcos' distance traveled (in miles) and the number of hours since he le Phoenix change together? at . Determine Marcos' average speed for the 155 mile trip. 2.2833 xmiles perhour f Preview . Devon also drove to Flagstaff, leaving at the same time and from the same location as Marcos, and arrives in Flagstaff at the same time. Devon has cruise control and travels at a constant speed for the entire trip. i. Which graph could represent the relationship between Devon's distance traveled (in miles) since leaving Phoenix and the number of hours elapsed since Devon le Phoenix? 8 ii. At what constant speed did Devon drive? 67186 W miles per hour Preview 1 d. Aer driving for 2.2 hours (2 hours and 12 mintues), Marcos' total distance traveled was 153 miles. At what constant speed (in miles per hour) will Marcos need to travel for the last 5 minutes of the trip so that he travels the 155 mile drive in 2 hours and 17 minutes? 67.86 xmiles per hour '_ Preview ; 12:53 PM Sat Dec 2 @15% imathas.rationalreasoning.net a Score on last attempt: 0.8 out of 6 Score in gradebook: 0.8 out of 6 Let g(x) = 3 + 1.7x and f(x) = 3(1.7). Explore the rates of change (constant? average?) for the linear function g and the exponential function f. Ag(x) Af(a) a. Determine the value of the ratios and Ax Ax over the following intervals of a: i. From x = 0 to x = 1.5. Ag(x) 2.55 Preview Ax Af (2) 1.7 Preview Ax ii. From x = 1.5 to x = 3. Ag(x) Preview Ax Af(a) Preview Ax iii. From x = 3 to x = 5. Ag(x) Preview Ax Af(a) Preview Ax b. Do the functions g and f have constant rates of change?12:54PM SatDecZ u. ?15%I imathas.rationalreasoning.net i The height of Trevor's beanstalk decreases by 50% per day when he stops feeding it. Trevor's beanstalk is 16 inches tall when he stops feeding it a. Write a function f that determines the height of Trevor's beanstalk (in inches) in terms of the number of days t since Trevor stopped feeding the beanstalk. w) = (:1 .. Preview b. Plot the points (0, f(0)), (1, f(1)), (2, f(2)), and (3, f(3)) on the graph below. \"9 ft?) 175 , __ : 1 5.. : : . r V . , vvvvvv r . . .. .............. t O l t t t - l i 2, , 3 t , 4 Clear All Draw: Dot 3: Box 1: Enter your answer as an expression Example: 3x"2+1, x/5, (a+b)/c Be sure your variables match those in the question Box 2: Enter your answer by drawing on the graph. Submit 12:54 PM Sat Dec 2 'r? (9 15% H mamasratlonalreasonmgnet The plot below shows the graphs of three functions, f, g, and h, all of which determine the population of a certain city (in thousands of people) in terms of the number of years 2 since 2000. a. The population of City A in 2000 was 40 thousand people and the population increased by 12% each year. The function f determines the population of this city (in thousands of people) in terms of z. i. Write a function formula for f. f(.):[:]. (Preview) . Which graph above represents f? The solid. blue graph. 0 v bi The population of City B in 2000 was 40 thousand people and the population increased by 18% each year. The function 9 determines the population of this city (in thousands of people) in terms of z. i. Write a function formula for y. ya) = :s (m) ii. Which graph above represents g? \\The dashed, red graph. 0) cl The population of City C in 2000 was 40 thousand people and the population increased by 15 thousand people each year. The function h determines the population of this city (in thousands of people) in terms of co. i. Write a function formula for h. ii. Which graph above represents h? The dotted. green graph. G v Box 1: Enter your answer as an expression. Example: 3x"2+1, x/S, (a+b)/c Be sure your variables match those in the