SOLUTION: how do i graph this on a cordinate plane.? 4x < -20

Algebra ->  Graphs -> SOLUTION: how do i graph this on a cordinate plane.? 4x < -20      Log On


   



Question 156922: how do i graph this on a cordinate plane.?
4x < -20

Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
how do i graph this on a cordinate plane.?
4x < -20
-------------
Graph istwith an equal sign, then change it to all points less than.
4x < -20
4x = 20
x = 5
-------------
This is a straight line with x = 5 regardless of the value of y. So it's a vertical line parallel to the y-axis thru the point (5,0).
-------------
Then for the inequality, it's all the space to the "left" of that line.