A line has a slope of -(3/7) and its y-intercept is (0,18). What is its x-intercept?
+1005 Rise over run.
Take out a sheet of graph paper.
Plot (0,18).
Go down -3, then go right 7.
Make a point there.
Conenect the dots into a line and figure out where the x-intercept is.
If you don't understand anything feel free to ask.
+36915 y = mx + b
y = -3/7 x + 18 x intercept is when y = 0 .....put that in
'0' = -3/7x + 18 solve for x
