Question

Write the equation in Slope-Intercept Form (solve for y).

Identify the y-intercept.
Put that point on the graph
3x +9y = 9

Answer 1

y=-1/3x+1

Explanation:

3x+9y=9

First take your x and transfer it to the other side of the = by doing the opposite.

3x+9y=9

-3x -3x

9y=9-3x

You must then switch the -3x and 9 so that it stays in y intercept form

9y=-3x+9

Then you need to get y by itself by dividing both sides by 9.

y=-3x/9+1

Lastly simplify the fraction left from the division.

y=-1/3x+1