Given points are

Next, find the slope.

Substitute 8 for *y*_{2}, 1 for *y*_{1}, 3 for *x*_{2}, and 6 for *x*_{1} in slope formula.

(Subtract: )

(Subtract: )

(Cancel common signs)

(Cancel common terms)

You know the slope and a point on the line, so use point - slope form

with either given point to write an equation of line.

Choose

(Substitute 1 for *y*_{1}, 6 for *x*_{1} and )

(Apply distributive property: )

(Multiply: )

(Add 1 to each side)

(Apply additive inverse property: )

(Apply additive identity property: )

(Add: )

The equation of line is .

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