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The slope m of a non vertical line through any two points is given by,
\ (Substitute
)
(Subtract:
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(Subtract:
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(Divide:
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Slope .
The line equation in point-slope form is ,
where m is the slope and where is a given point on a nonvertical line.
Substitute m = , x1 = 3 and y1 = 5 in point-slope form equation.
Distribute terms using distributive property: a(bc) = ab
bc. \ \
(Multiply:
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Apply addition property equality: Add 5 to each side.
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(Apply additive inverse proeprty:
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(Apply additive identity property:
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(Add:
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The line equation is .