The temperature C of a fresh cup of coffee t minutes after it is poured is given by C = 125e-0.03 +74 degrees Fahrenheit. Tipyahin Shutterstock.com (a) Make a graph of C versus t. 200 180 160 140 120 C₁ 100 60 20 20 40 60 80 100 120 140 160 180 200 220 240 200 180 160 140 120 100 80 C 60 40 20 20 40 60 80 100 120 140 160 180 200 220 240

The table shows the relationship between y, the cost to rent a boat, and x, the amount of time the boat is rented. Boat Rental Costs Time, x Cost, y (hours) (dollars) 1 32 3 56 80 104 Which graph best represents the relationship between x and y shown in the table? Boat Rental Boat Rental 8 16 24 32 40 48 56 64 72 80 Time (hours) Time (hours) Boat Rental Boat Rental 80 72 152 64 56 128 104 48 80 40 56 32 32 24 16 1 2 3 4 5 Time (hours) 1 2 3 4 5 Time (hours) Cost (dollars) Cost (dollars) (sjejjop) as0) Cost (dollars) 128 152

bike increases its speed by five meters per second every 10 seconds. Which graph shows this relationship? 501 45 50 45 40 35 30 25 35 A. B. 010 20 30 4050 Time (sec) 10 20 30 4050 Time (sec) 50 10 35 30 D. C. 10 20 30 40 50 Time (sec) 10 20 30 40 50 Time (sec) Snonon onon o n44332211 Speed (m/sec) Speed (m/sec) nttmm2211

Interpret the slope of the graph of y=f(x)