How do you graph y > 6x+5 and y< -6x+7?

1 Answer
Aug 4, 2015

Determine the areas represented by each inequality and then select only the area covered by both selections

Explanation:

color(red)("For " y > 6x - 5)
color(white)("XXXX")Identify 2 points on the corresponding equality equation
color(white)("XXXX")color(white)("XXXX")I used (x=0 rarr y=-5) and (x=2 rarr y=-5)

color(white)("XXXX")Draw the line through these two points (noting that in this case the line is not to be included) and select the side corresponding to the inequality.
color(white)("XXXX")color(white)("XXXX")One way to do this is to test if (0,0) is in the included or excluded area.

color(blue)("For " y < -6x + 7)
color(white)("XXXX")Repeat the above process

color(green)("Select area common to both")
color(white)("XXXX")(see image below)
enter image source here