Question

Enter the following data into a graphing calculator. (Make sure that any previous data have been cleared.)

(-50, 200); (-40, 175); (-100, 300); (-20, 100); (10, 0)
(-10, 25); (25, -100); (50, -150); (40, -125); (75, -200)
What is the equation of the line of best fit? Round your answer to the nearest hundredth.
A) y = 2x - 100
B) y = -2x + 100
C) y = -2x - 100
D) y = 2x + 100

Answer 1

To find the equation of the line of best fit, perform linear regression using the given data points.

Step-by-step explanation:

To find the equation of the line of best fit, we need to perform linear regression using the given data points.

1. Enter the data points into a graphing calculator.
2. Perform linear regression using the calculator's regression function.
3. The equation of the line of best fit is given by the regression equation obtained.

Using the given data points, the equation of the line of best fit is found to be y = -173.5 + 4.83x (rounded to the nearest hundredth).