Question

Find the estimated slope.Round the answer to three decimal places.

Answer 1

To find the estimated slope, choose two points on the line and substitute their coordinates into the slope formula. Solve for the slope and round the answer to three decimal places.

Step-by-step explanation:

The estimated slope can be found by using the formula:

m = (Y2 - Y1) / (x2 - x1)

1. Choose two points on the line. In this case, we choose the points labeled on the graph: (6.4 s, 2000 m) and (0.50 s, 525 m).
2. Substitute the coordinates of the points into the slope formula: m = (2000 - 525) / (6.4 - 0.50).
3. Solve for the slope: m = 1475 / 5.9 = 250.847.
4. Round the answer to three decimal places: the estimated slope is 250.847.

Answer 2

The x-values are 0.5, 1, 2.5, 3, 4, 5, 5.5

The y-values are 98, 95, 90, 79, 75, 69, 66

We will find the slope of linear regression line using a calculator.

The estimated slope of the linear regression line is:

-6.57895

Rounding to 3 decimal places >>>>

- 6. 579

The y-intercept is 101.92105

Rounding to 3 decimal places >>>>

101.921Linear Regression Line