Match the following vocabulary words. 1. a diagram showing how one quantity depends on or changes with another quantity. pie chart 2. a graph that uses rectangular bars to show the comparisons or relationships. line graph 3. a graph that divides up a circle to show the relationship of the parts. bar graph 4. a graph in which points are plotted and then the points are joined with a line. independent variable 5. a graph that presents statistical data by using pictures. vertical axis 6. data which changes because it is related to (dependent upon) something else. graph 7. data whose value does not depend upon that of another variable. pictograph 8. the horizontal or vertical line on a graph. dependent variable 9. an axis that is parallel with the horizon. horizontal axis 10. an axis that is perpendicular to the horizontal axis. axis

Time (minutes) amount of water (gallons) practice 1. jin fills up a 510-gallon pool in the backyard for her children. she fills it with the garden hose at a rate of 17 gallons per minute. after it is filled, she lets it sit for 30 minutes in order to let the water temperature rise. the children then get in and have fun for an hour. the pool loses about 5 gallon of water each minute due to their splashing and playing. at the end of the hour, they tear the pool while getting out, which causes a leak the pool then begins to lose water at a rate of 2 gallons per minute. a. complete the table to show the amount of water in the pool after each minute. b. create a graph to model the problem situation. include when the pool will be empty. c. write a piecewise function that models this problem situation. explain your reasoning for each piece of the function. d. identify the x- and y-intercept. explain what they mean in terms of the problem situation, atamantha a cul 80 100 120 150 200 ning, inc