Question

How do you find the slope of the line passing through (1,-7) and (2,7)?

Answer 1

See a solution process below:

Explanation:

The slope can be found by using the formula: `m = (color(red)(y_2) - color(blue)(y_1))/(color(red)(x_2) - color(blue)(x_1))`

Where `m` is the slope and (`color(blue)(x_1, y_1)`) and (`color(red)(x_2, y_2)`) are the two points on the line.

Substituting the values from the points in the problem gives:

`m = (color(red)(7) - color(blue)(-7))/(color(red)(2) - color(blue)(1)) = (color(red)(7) + color(blue)(7))/(color(red)(2) - color(blue)(1)) = 14/1 = 14`