
Carol H. answered 12/19/18
Experienced Mathematics Tutor w/ Master's Degree in Math
x + 4y < 16
Change to slope-intercept form.
4y < -x + 16
y < (-1/4)x + 4
y-intercept: (0,4)
slope = -1/4
Plot the point. Then plot another point by going down 1 and 4 to the right from (0,4).
Connect your two points with a dotted line. Then, shade beneath the line.