tab Eduphoria → C + 8th Grade Math EOY 2023-24 QQ ZOOM SCRATCHPAD O ADD NOTE Tiaralynn Johnson REFERENCE QUESTION GUIDE EXIT TEST 19. A cable company offers a table to show the cost of using its service. Monthly Cable Service Costs Number of Accumulated The monthly rate increased more between months 6 and 10 than between months 1 and 2. Months Cost 1 $35 2 $70 6 $210 10 $350 Which statement correctly describes the relationship represented in the table? (PREVIOUS o Z # 2 3 W इ S d C $ 545 f The one-time fee to set up cable service is $35. CLEAR ALL The monthly rate for cable service continues to increase each month. The monthly rate for cable service is $35. 17 18 19 20 21 % 5 t 6 & F 8 9 Y j k 9 b n m NEXT > REVIEW&SUBMIT P alt ctri backspace enter

Running In 1987, Canadian Ben Johnson set a world record in the 100-m sprint.The record was later taken away when he was found to have used an anabolic steroid to enhance his performance. His speed at various times in the race is given in the following table . Source: Information Graphics. Timesec Speedmph 0 0 1.84 12.9 3.80 23.8 6.38 26.3 7.23 26.3 8.96 26.0 9.83 25.7 a. Use the information in the table and left endpoints to estimate the distance that Johnson ran in miles. You will first need to calculate t for each interval. At the end, you will need to divide by 3600 the number of seconds in an hour, since the speed is in miles per hour. b. Repeat part a, using right endpoints. c. Wait a minute, we know that the distance Johnson ran is 100m. Divide this by 1609, the number of meters in a mile, to find how far Johnson ran in miles. Is your answer from part a or part b closer to the true answer? Briefly explain why you think this answer should be more accurate. d.

Grade Point Average In many universities students are given grade points for each credit unit according to the following scale: A 4 points B 3 points C 2 points D 1 point F 0 point For example, a grade of A in a 3-unit course earns 43=12 grade points and a grade of B in a 5-unit course earns 35=15 grade points. A students grade point average GPA for these two courses is the total number of grade points earned divided by the number of units; in this case the GPA is (12+15)8=3.375. a Find a formula for the GPA of a student who earns a grade of A in a units of course work, B in b units, C in c units, D in d units and F in f units. b Find the GPA of a student who has earned a grade of A in two 3-unit courses, B in one 4-unit courses and C in three 3-unit courses.

U.S. Census data shows that the median price of new home in the United States in November 2014 was $280,900. This was $10,700 more than 14 times the price in November 1964. What was the median price of a new home in November 1964?