Question

please help!!

Find the slope of a line parallel 3x+5y=15.

5/3
3/5
- 5/3
- 3/5

Answer 1

you can do this either by
1) solving for \(y\) or
2) memorize that the slope of \(ax=by=c\) is \(m=-\frac{a}{b}\)

Answer 2

typo there, i meant \(ax+by=c\)

Answer 3

huh?? im lost

Answer 4

if you can turn
\[3x+5y=15\] in to \[y=mx+b\] then the slope is \(m\)
you do this by solving \(3x+5y=15\) for \(y\)
do you know how to do that?

Answer 5

nope still confuse

Answer 6

solve 3x+5y=15 for y

First Step: Isolate the 5y term by subtracting 3x from both sides of the equation.

3x+5y=15
-3x -3x
--------------
5y = -3x + 15

Next step: divide both sides of the equation by 5.

@knowel

Answer 7

Parallel lines have the same slope. So solve and take this slope and, BAM!

Answer 8

3x+5y=15

Answer 9

5y=15-3x