# inequalities

• September 12th 2009, 10:02 AM
Vicky1997
inequalities
Plot the points A = (4,0), B=(4,5), C=(0,7), and D= (0,0).
Write a series of simultaneous inequalities that describe the region enclosed by the quadrilateral ABCD formed by the joining four points.

My answer is y > or equal to 0

x > or equal to 0

x < or equal to 4

y < or equal to -1/2x + 7

is my answer correct?

Vicky
• September 12th 2009, 07:33 PM
songoku
Hi Vicky1997

I think your answer is right and it also can be written as :

$0\leq x\leq 4$

$0\leq y\leq -\frac{1}{2}x + 7$