Question

Try finding the slope of a line joining the following pairs of points:
(12, -3) and (2, 1)

Answer 1

use this formula:\[\large{{y_2-y_1}\over x_2-x_1}\]

Answer 2

slope, m=change in y/change in x

Answer 3

\[{1-(-3)\over2-12}\]\[1+3\over2-12\]\[4\over-10\]\[2\over-5\]

Answer 4

@kerstie

Answer 5

1--3 is 4. 2-12 is -10. 4/-10 is -2/5.