# equation of the line.....

• December 15th 2007, 09:01 AM
Morzilla
equation of the line.....
This is the quesnition....

Write an equation of the line in the form x=a, y=b, or y=mx+b

trough (8,3) parallel to y=5x-6

Im completely lost here!?

thanks
• December 15th 2007, 09:06 AM
Plato
Because they are parallel the two line will "look" alike.
So the line you want is y=5x+b. Use x=8 & y=3 to find b.
• December 15th 2007, 05:05 PM
Morzilla
Quote:

Originally Posted by Plato
Because they are parallel the two line will "look" alike.
So the line you want is y=5x+b. Use x=8 & y=3 to find b.

so then I would plug in both 8 and 3 into y=5x+b?

3=5(8)+b ?

3=40b ?

3-40=b ?

-37=b ?
• December 27th 2007, 12:37 AM
JoFaSs
You got the correct answer but you forgot the '+' after the b in the second step

$3=5(8)+b$
$3=40+b$
$b=3-40=-37$