Slope of trend line calculator
[DOC File]Determining G on an Incline
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Draw a best-fit line by hand or use the linear-regression feature of your calculator or Graphical Analysis and determine the slope. The slope can be used to determine the acceleration of the cart on an incline of any angle. On the graph, carry the fitted line out to sin(90() = 1 on the horizontal axis, and read the value of the acceleration.
[DOCX File]Activity 5.4 Calculating Properties of Solids Answer Key
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Since the slope of the line is represented by rise/run and density = mass/volume, the rise (vertical axis) should be mass and the run (horizontal axis) should be volume. Since a zero volume would result in zero mass, to what value should you set the y-intercept? Zero. That is, the point (0,0) = (volume, mass) is a point on the line.
[DOCX File]go.roguecc.edu
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Find the equation for the trend line using the regression feature of your graphing calculator. Round slopes and y-intercepts to 3 decimal places. Use your regression equation to predict the volume of a 15 year old tree, accurate to 1 decimal place.
[DOC File]To find the line of Best Fit on the calculator you must do ...
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Find an equation for the line of best fit, make the corresponding predictions, explain what the slope represents, and explain what the y-intercept represents. 1) Year Cost of Stamp 1958 0.04 1963 0.05 1968 0.06 1971 0.08 1974 0.10 1975 0.13 1978 0.15 1981 0.18 1985 0.22 1988 0.25 1991 0.29 1995 0.32
[DOC File]Conductivity Versus Concentration
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a = slope of the line b = y-intercept of the line. r = correlation coefficient (a measure of how well the this line fits the data. ) The closer the value is to 1.00, the better the data fits a straight line.) Record these values in the Data Table. On the TI-83 If the r value does not appear on the screen, press [CATALOG].
[DOC File]Chapter 2: Linear Functions - OpenTextBookStore
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Find the slope of the line that passes through the two given points. 17. (2, 4) and (4, 10) 18. (1, 5) and (4, 11) ... calculate the regression line using your calculator or other technology tool, and determine the correlation coefficient. ... Determine if the trend appears linear. If so and the trend continues, in what year will imports exceed ...
[DOC File]Concept
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Calculator or Computer Activity (30-45min) When students are done gathering data, the data will be entered into a TI-83 (82) or spreadsheet in order of (volume, mass). When all data is entered, a linear regression should be applied to the data. The slope of the trend line will represent the density of water in units of grams/milliliters.
[DOCX File]Algebra 1 Name:
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Draw a trend line. d. Use a calculator to find the equation of the line of best fit. (Round to the . hundredths place if needed.) e. Interpret the slope and y-intercept of the line of best fit. Slope: y-intercept: f. Find the correlation coefficient, r : g. Determine the strength of the correlation coefficient.
[DOCX File]Algebra 1 - Connecticut
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The trend line you will find with the calculator is called the . regression line. or . line of best. fit. The table below, from Activity 5.2.2, gives the height (in inches) and weight (in pounds) of some of the NBA’s greatest players. ... a ≈ 7.03 is the slope of the regression line and b ≈ –332.45 is the y-intercept of the regression line.
[DOC File]Trendlines
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a. Find the equation for this model using the mathematical calculations. (Hint: you already have two X-Y pairs given, so calculate the slope, then plug slope and an X-Y pair into the equation for a line and solve for the y-intercept.) b. Use the equation to give a prediction for the percentage of …
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