SOLUTION: Graph the inequality on a plane. 4x+5y<=20 I am very confused on this question. Any help would be greatly appreciated.

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Question 400121: Graph the inequality on a plane.
4x+5y<=20
I am very confused on this question. Any help would be greatly appreciated.
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!


Hi

4x+5y<=20  OR y <= (-4/5)x + 4  Slope m = (-4/5) and y-intercept Pt(0,4)

I. Graph line:  Plot y-intercept and find at least one more PT using the slope

Note: as y increases/decreases by 4, x increases/decreases by 5 in opposite direction



II. Shade portion represented by the inequality: 

In this example: below and including the line




 
Solved by pluggable solver: Plot Any Inequality


Graphing function y%3C=%28-4%2F5%29x%2B4: 

  

  graph%28+300%2C+300%2C+-10%2C+10%2C+-8%2C+12%2C+y%3C=%28-4%2F5%29x%2B4+%29