Writing Equations of Trend Lines

Front

What ordered pairs would you use to find the slope for the trend line? Options: (1,0) (6,8), (8,6) (0,1)

Back

(1,0) (6,8)

Front

Find the slope between (1,0) and (6,8)

Back

m = 8/5

Front

After finding the slope between 2 points, what step is next?

Back

Choose a point.

Front

Substitute point (1,0) and m = 8/5 to solve for b.

Back

0 = 8/5 (1) + b

Front

Solve for b: 0 = 8/5 (1) + b

Back

b = -8/5

Front

If m = 8/5 and b = -8/5, what is the equation of the trend line in y= mx + b?

Back

y = 8/5 x - 8/5

Front

What ordered pairs would you use to find the slope for the trend line? Options: (9,0) (3,8), (0,9) (8,3)

Back

(0,9) (8,3)

Front

Find the slope between (0,9) and (8,3)

Back

m = -3/4

Front

After finding the slope between 2 points, what step is next?

Back

Choose a point.

Front

Substitute point (0,9) and m = -3/4 to solve for b.

Back

9 = -3/4(0) + b