Discovering Algebra: An Investigative Approach 2
Daxun, Lacy, Claudia, and Al are working on a number trick. Here are the number sequences their number trick generates: a. Describe the stages of this number trick in the first column. b. Complete Claudias sequence. c. Write a sequence of expressions for Al in the last column.
Discovering Algebra: An Investigative Approach 2
APPLICATION Market A sells 7 ears of corn for $1.25. Market B sells a bakers dozen (13 ears) for $2.75. a. Copy and complete the tables below showing the cost of corn at each market. b. Let x represent the number of ears of corn and y represent cost. Find equations to describe the cost of corn at e
Discovering Algebra: An Investigative Approach 2
Let x represent distance in miles and y represent distance in kilometers. Enter the equation y = 1.6x into your calculator. Use it for Exercises 13.Trace the graph of y = 1.6x to find each missing quantity. Adjust the window settings as you proceed. a. 25 miles kilometers
Discovering Algebra: An Investigative Approach 2
Ted and Ching-I are using a motion sensor for a walker investigation. They find that the graph at right models data for Teds walk. Write an equation for this graph.
Discovering Algebra: An Investigative Approach 2
Igba-ita (pitch and toss) is a favorite recreational game in Africa. In one version of Igba-ita, four cowrie shells are thrown in an effort to get a favorable outcome of all four up or all four down. Now coins are often used instead of cowrie shells, and the name has changed to Igba-ego (money toss)
Discovering Algebra: An Investigative Approach 2
Bernard Lavery, a resident of the United Kingdom, has held several world records for growing giant vegetables. The graph shows the relationship between weight in kilograms and weight in pounds. a. Use the information in the graph to complete the table. b. Calculate the rate of pounds per kilogram for
Discovering Algebra: An Investigative Approach 2
The graph describes another students distance from you. a. Is the relationship a function? Explain your reasoning. b. What is the domain? c. What is the range? d. Explain what (0, 2) means in this situation. e. Find the missing coordinate in each ordered pair. (3.5, y) (5, y)( x, 3)
Discovering Algebra: An Investigative Approach 2
In Exercises 14, a and b are the legs of a right triangle and c is the hypotenuse. Suppose the square on side c has an area of 2601 cm2 and the square on side b has an area of 2025 cm2. What is the area of the square on side a?
Discovering Algebra: An Investigative Approach 2
Give the five-number summary and create a box plot for the listed values.
Discovering Algebra: An Investigative Approach 2
Which data set matches this box plot? (More than one answer may be correct.) a. b. c. d.
Discovering Algebra: An Investigative Approach 2
Does someone use the same amount of soap each day when he or she showers? Rex Boggs of Glenmore State High School in Queensland, Australia, decided to find out. He collected data for three weeks. a. Make a scatter plot and find a linear equation that fits the data. Use any method that you prefer. b.
Discovering Algebra: An Investigative Approach 2
Describe how to solve each equation for x. Then solve. a. 14 = 3.5x b. 8x = 45(0.62) c. d.
Discovering Algebra: An Investigative Approach 2
Sketch each graph on your own paper. i. ii. a.Circle the points that represent the five-number summary values. If two data points are needed to calculate the median, first quartile, or third quartile, draw a circle around both points. b. List the five-number summary values for each data set.
Discovering Algebra: An Investigative Approach 2
Let x represent distance in miles and y represent distance in kilometers. Enter the equation y = 1.6x into your calculator. Use it for Exercises 13. Use the calculator table function to find the missing quantity. settings as you proceed. a. 55 miles kilometers
Discovering Algebra: An Investigative Approach 2
On Pennys 15th birthday, her grandmother gave her a large jar of quarters. Penny decided to continue to save quarters in the jar. Every few months she counts her quarters and records the number in a table like this one. Predict how many quarters shell have on her 18th birthday. a. Make a scatter plot
Discovering Algebra: An Investigative Approach 2
Run the ABS program five times. On your paper, sketch a graph of each randomly generated absolute-value function. Find an equation for each graph. See Calculator Note 8C to learn how to use the ABS program.