Your graphing calculator is a great tool! Get comfortable with it and it will save you lots of time and effort.
To perform a linear regression:
1) Go to the home screen (on).
2) Select "Lists and Spreadsheets"
3) Enter your x-values in column A and your y-values in column B.
4) Scroll to the very top of the A value to highlight the column. Then press "shift" and highlight the B values.
5) Select "Menu", "Statistics", "Stat Calculation", "Linear Regression (mx+b)"
6) "Enter" past the page
7) Your answer is given!
Use the equation you are given to make predictions!
Brian uses a linear regression to model the relationship between cricket chirp rate and temperature shown in the table.
What is the equation of the line given the table?
The table below gives the number of hours spent studying for a science exam (x) and the final exam grade (y).
What is the equation of the line?
What is the correlation coefficient?
The table below shows the lengths (in inches) and corresponding weights (in pounds) of sand sharks.
Predict the weight of a sand shark whose length is 75 inches. (Hint: Find the equation and then substitute the value of 75 in for x). Round to the nearest hundredth.
What is the slope of a line that is perpendicular to the equation
What is the equation of a line that passes through the point (3, -5) and has a zero slope?
Which situation best represents causation?
What is the slope and y-intercept of the following equation? (y=mx+b)
The slope for the equation is and the y-intercept is
What is the slope of a line parallel to
What is the equation in the point-slope form of a line passing through the point (3, -2) with a slope the same as
What is the slope of the following equation