Madison is monitoring the temperature over several hours. Her data are shown in the table. She draws a line of best fit with the equation y =-6.2x+64, where x represents the hour and y represents the temperature.
Describe the meaning of the slope and y-intercept in this context.
1 point
1
Question 2
2.
The amount of sports drink in a cooler during practice is modeled by the equation y=-24x+648, where y is the number of ounces in the cooler after practice and x is the number of players at practice who take drinks from the cooler. Based on the information in the equation, which statements are true? Choose all that apply.
2 points
2
Question 3
3.
Amalia and Alec are studying the growth of a plant over time. They measure the height of the plant at the end of each week for several weeks and display the data in a scatter plot. Then they find the equation for the line of best-fit to be y =2.5+1.25x, where x represents the week and y represents the height of the plant at the end of the week. They want to use the equation to estimate when the height of the plant will be 10 inches. Amalia’s estimate is after Week 6, and Alec’s estimate is after Week 15. Is either student correct? Explain.