Question

Write an equation for the trend line shown on the scatter plot.

Answer 1

To write the equation for the trend line shown on the scatter plot, use the least-squares regression line method.

Step-by-step explanation:

To write the equation for the trend line shown on the scatter plot, you can use the least-squares regression line method. Follow these steps:

1. Enter the data into a calculator and make a scatter plot.
2. Use the calculator's regression function to find the equation of the least-squares regression line.
3. Add the equation of the regression line to your scatter plot.

The equation for the trend line will be in the form ŷ = a + bx, where a is the y-intercept and b is the slope.

Answer 2

Write an equation for the trend line shown on the scatter plot.

y = mx + b

where m = slope and b = y-intercept

y = x + 15