Distancemath com answers

Name: Date: Graded Assignment Algebra 1 Checkpoint 4, Part 2 1. Use the sequence to answer the questions. 2.5, 6, 9.5, 13, 16.5, 20,… (a) What is the common difference? (b) What is the recursive rule for the sequence? Answer: 2. The length of a rectangular floor is 4 ft longer than its width w. The area of the floor is 525 ft2. (a) Write a quadratic equation in terms of w that represents the situation. (b) What are the dimensions of the floor? Show your work. Answer: 3. Solve the system of equations by graphing. f ( x )   x  5  g ( x )  x 2  3 x  2 Graph the functions and state the solution(s). Answer: Name: Date: Graded Assignment Unit Test, Part 2: Univariate Data 1. Ling wants to determine the average distance she travels each day in her car. She records the odometer reading each morning for a week. Day Odometer (mi) 1 2 3 4 5 6 7 10,150 10,211 10,424 10,769 10,884 11,155 11,477 What is the mean distance Ling travels each day? Show your work. Answer: 2. The data in the table represent the training times (in seconds) for Adam and Miguel. Adam 103 105 104 106 100 98 92 91 97 101 Miguel 88 86 89 93 105 85 92 96 97 94 (a) All of the training times of which person had the greatest spread? Explain how you know. (b) The middle 50% of the training times of which person had the least spread? Explain how you know. (c) What do the answers to Parts 2(a) and 2(b) tell you about Adam’s and Miguel’s training times? Answer: 3. The data modeled by the box plots represent the battery life of two different brands of batteries that Mary tested. (a) What is the median value of each data set? (b) Compare the median values of the data sets. What does this comparison tell you in terms of the situation the data represent? Answer: ...