Question

What is the slope of line a?

Answer 1

Given:

The graph of a line a.

To find:

The slope of the line a.

Solution:

Slope formula:

`m=(y_2-y_1)/(x_2-x_1)`

From the given graph it is clear that the line a passes through the points (-1,1) and (0,-2). So, the slope of the line a is:

`m=(-2-1)/(0-(-1))`

`m=(-3)/(1)`

`m=-3`

The slope of the line a is -3. Therefore, the correct option is C.