SOLUTION: find the slope if it exists x+9y=18 m=

Algebra ->  Linear-equations -> SOLUTION: find the slope if it exists x+9y=18 m=      Log On


   

Question 213017: find the slope if it exists
x+9y=18
m=
Answer by drj(1380) About Me  (Show Source):
You can put this solution on YOUR website!
Find the slope if it exists

x%2B9y=18
m=?

Step 1. Need to isolate y and put it to get the slope-intercept form. That is, y=mx%2Bb where m is the slope and b is the y-intecept.

Step 2. Subtract x from both sides of equation to isolate 9y

x%2B9y=18

x%2B9y-x=18-x

9y=18-x

Step 3. Divide by 9 to both sides of equation to get y

9y%2F9=%2818-x%29%2F9

y=18%2F9-x%2F9

y=2-x%2F9

Step 4. Put above equation now in slope-intercept form y=mx+b

y=-1x%2F9%2B2=-x%2F9%2B2

Step 5. The slope m=-1%2F9 and the y-intecept b=2

I hope the above steps were useful.

For FREE Step-By-Step Videos in Introduction to Algebra please visit http://www.FreedomUniversity.TV/courses/IntroAlgebra.

And for FREE Step-By-Step Videos in Trigonometry please visit http://www.FreedomUniversity.TV/courses/Trigonometry.

Good Luck in Your Studies also!

Respectfully,
Dr J