So we draw the graph of 4x+6y = 240
If we let x be 0 then we can just put our finger over the x term,
so that all we see is:
6y = 240
y = 40
So the y intercept is (0,40).
And we plot it and label it, like this:
4x+6y = 240
If we let y be 0 then we can just put our finger over the y term,
so that all we see is:
4x = 240
x = 60
So the x intercept is (60,0).
And we plot it and label it like this:
Then we get a ruler and draw a line connecting them:
The x-intercept is when x, the number of movie rentals is 0, which
is when there are no game rentals at all, and the $240 is made by
renting only movies.
The y-intercept is when y, the number of game rentals is 0, which
is when there are no movie rentals at all, and the $240 is made by
renting only games.
Edwin