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- Multiple ChoicePlease save your changes before editing any questions.What is the y-intercept in the following equation: y= -5 - 4x-4-4x5-5
- Multiple ChoicePlease save your changes before editing any questions.What is the slope in the following equation: y=6 - 2/3x2/36-6-2/3
- Multiple ChoicePlease save your changes before editing any questions.What does the slope represent in this situation?The sloth runs 1 feet in 3 minutesThe sloth runs 3 feet in 1 minuteThe sloth runs fastThe sloth runs 6 feet in 1 minute
- Multiple ChoicePlease save your changes before editing any questions.What does "b" represent in y=a + bx?y-interceptslopemacaroninothing
- Multiple ChoicePlease save your changes before editing any questions.When evaluating data on a scatter plot, what can be used to make predictions about the future?interpoationextrapolationcorrelation coefficientcausation
- Multiple ChoicePlease save your changes before editing any questions.What is the line of best fit? (Ignore the x = 30, y = ? point.)f(x) = 1.82 + 5xcannot be determinedf(x) = 5.02 + 1.82xf(x) = 4.2 + 1.1x
- Multiple ChoicePlease save your changes before editing any questions.Find the equation of the line of best fit for the given datay = 4.19 + 163.41xy = 4.19 - 163.41xy =163.41 - 4.19xy = -163.41+ 4.19x
- Multiple ChoicePlease save your changes before editing any questions.The table shown is comparing a person's foot length to their height in cm. Calculate a line of best fit.f(x) = 5.57 + 25.05xf(x) = 25.05 + 5.57xf(x) = 25.05 - 5.57xf(x) = - 25.05 + 5.57x
- Multiple ChoicePlease save your changes before editing any questions.What is least-squares line used for?To make predictionsTo make the graph look prettyTo connect the pointsTo make it look like you know what you are doing
- Multiple ChoicePlease save your changes before editing any questions.The scatter plot shows the relationship between the number of chapters and the total number of pages for several books. Use the least-squares line to predict how many chapters would be in a book with 180 pages.12 chapters15 chapters18 chapters21 chapters
- Multiple ChoicePlease save your changes before editing any questions.Students in a group of chess teams submitted data about hours of team practice and the number of matches the team won. The graph shows the results of the data. Based on the linear regression equation y = 3.52 + 3.14x, if a team practices 4.5 hours per week next year, which is the best prediction of the number of chess matches a team could expect to win?about 24about 12about 8about 18
- Multiple ChoicePlease save your changes before editing any questions.Rich is a member of a gym. He pays a monthly fee plus a per-visit fee. The equation below represents the monthly amount Rich pays for his membership to the gym per month for x visits.
y= 10 + 3x
What does the y-intercept of the graph of this equation represent?The monthly feeHow much Rich pays per visitThe number of times Rich goes to the gymThe total cost at the end of the month - Multiple ChoicePlease save your changes before editing any questions.How much does it cost to have your lawn mowed for 2 hours?$16$17$18$19
- Multiple ChoicePlease save your changes before editing any questions.About how many male math teachers were there in 2006?15303545
- Multiple ChoicePlease save your changes before editing any questions.The equation of the least-squares line is y= 1 + 1/2x.
How many laps can a bicycle make around the park in 23 minutes?44 laps12 1/2 laps23 laps - Multiple ChoicePlease save your changes before editing any questions.Based on the graph, if Joe earned $400, how many hours did he work?25 hours35 hours45 hours15 hours
- Multiple ChoicePlease save your changes before editing any questions.The following scatter plot shows Pam's training as she prepares to run a 6 mile race at the end of the month. Which of the following would be a reasonable approximation for the length of time it would take for her to run 6 miles?A. 50 minB. 80 minC. 45 minD. 60 min