Find a linear inequality with the following solution set. Each grid line represents one unit.
http://latex.artofproblemsolving.com/6/4/d/64d8e4d2124c96770af292773d0a587a247b8718.png
(Give your answer in "standard form" or where and are integers with no common factor greater than 1.)
Equation of the red line is y = -x +1
the shaded area PLUS the included red line : y <= -x+1
Formatted: y+x -1 <= 0 or -y-x+1>=0
Noticing that the slope of the line is -1 and the y intercept is 1, the equation of the line in slope intercept form is y=-x+1.
The point (0,0) should work in this inequality, so to make this an inequality this point should be plugged in and then the equals sign adjusted so it is true.
0=-0+1
0=1
This is not true so it should be \(0 \leq 1\), the less than or equil part because the points on the line should work in the inequality.
\(y \leq -x+1\)
To change this into standard form, the -x needs to be moved to the other side.
\(y+x \leq 1\)
This cannot be simplified further so \(\boxed{y+x \leq 1}\) is the answer.
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