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What is an equation for this line?

What is an equation for this line?-example-1
User Nicolas D
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1 Answer

6 votes

Answer:

The equation of the line is y=-x

Explanation:

To find the equation for a line, we need to know 2 points.

One of the points is (0,0) because it goes through the origin. Another point is (5,-5). We can calculate the slope because we have 2 points using the formula.

m = (y2-y1)/(m2-m1)

m = (-5-0)/(5-0)

m = -5/5

m=-1

The slope is -1

We know the y intercept (where it crosses the y axis) is 0. Using the slope intercept form of a line

y = mx+b

y =-1x+ 0

y = -x


The equation of the line is y=-x

User FragmentalStew
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