These are linear inequalities that only leave interior of rectangle as white space. They are:
. . . . .\(\displaystyle y\, <\, 5x\)
. . . . .\(\displaystyle y\, >\, 5x\, +\, 2\)
. . . . .\(\displaystyle x\, >\, -5y\)
. . . . .\(\displaystyle x\, <\, -5y\, -\, 2\)
No vertical or horizontal lines were allowed to make this.
I need to be able to show algebraically or numerically that the rectangle has perpendicular sides. Essentially proving that the sides are perpendicular. How would I go about doing this?
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