1. ## equation of line

In the book "Calculus For Dummies" page 57 it says convert y - 11 = 3 ( x - 2 ) into y = 3x + 5 There is no clue in sight on how to go about doing that.

In the book "Calculus For Dummies" page 57 it says convert y - 11 = 3 ( x - 2 ) into y = 3x + 5 There is no clue in sight on how to go about doing that.
hmmm.

You know that: $y-11=3(x-2)$

So use the distributive property: $y-11=3x-6$

Now add 11 to both sides: $y\!\!\!\!\!\overbrace{-11+11}^{\text{notice this equals 0}}\!\!\!\!\!=3x\!\!\!\!\!\underbrace{-6+11}_{\text{and this equals 5}}$

Therefore: $y=3x+5$

3. Thank you very much.