Q: find the slope
x + 9y = 18
m = ?
A: m = - 1/9
To find the slope of the equation x + 9y = 18, we need to rearrange the equation into the slope-intercept form, which is in the form of y = mx + b, where m is the slope.
Let's rearrange the equation x + 9y = 18 to isolate y:
9y = -x + 18
Divide both sides of the equation by 9:
y = (-1/9) * x + 2
Now, we can see that the slope is -1/9. Therefore, the slope of the equation x + 9y = 18 is -1/9.