What is the slope and y-intercept of the line x + y + 2 = 0?

1 Answer
Jul 30, 2015

slope = -1
intercept = -2

Explanation:

The standard equation of the line in the slope-intercept form is y = mx+c, where m is the slope and c is the intercept.

So our work is to get the equation in this particular form.

x + y + 2 = 0
=> y = -x - 2
=> y = (-1) x + (-2)
This is an equation in the slope-intercept form, and we can compare it with the equation y = mx+c to get m = -1 and c = -2 .

(Try and draw a graph, and it would be very clear to you what the negative slope and intercept means.)