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

1 Answer
Nov 14, 2015

Slope = - 2,
y-intercept = -2,
x-intercept = -1.

Explanation:

We start with:
2x + y = -2.

The equation of a straight line is usually written as:
y = mx + c, where m is the gradient and c the y-intercept. So, we will put it in that format:
2x + y = -2,
y = -2x -2. So, we know that m = -2 and that the y-intercept is at -2.

If we want to know the x-intercept, we can simply substitute y by 0 and solve for x:
0 = - 2x - 2,
2x = - 2,
x = -1.

Hope it Helps! :D .