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Find the equation of a line given the point and slope below

1 Answer

1 vote

The formula for finding the equation of a line given the point and slope is:

• y - y1 = m (x - x1)

Where,

• (x1,y1) is the coordinate point given

,

• m is the slope

,

• (x, y) other point on the line

And all what you have to do is replace the variables by the values given.

Let's work on an example:

Find the equation of the straight line that has slope m = 4 and passes through the point (–1, –6)

Using the formula, we have:

y - (-6) = 4 (x - (-1))

y + 6 = 4 (x + 1)

y + 6 = 4x + 4

y = 4x + 4 -6

y = 4x - 2

User Bnbeckwith
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