Hints: in 5x+4y=32, let x= to obtain the y-intercept. y=8. This is the UPPER limit of the visible window. Next, let y= 0 in this same equation, to obtain the x-intercept. Answer: x=32/5. Since the 2 graphs extend beyond x=32/5, to the right, adopt x=7 as the RIGHT HAND limit of the visible window. Can you finish this problem?