Running Header: Two-Variable
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Two-Variable Inequalities Worked Out
Scott Burkett
MAT222: Intermediate Algebra
Patricia Chernovitz
June 30, 2014

Two-Variable
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Two-Variable Inequalities Worked Out
After working with and solving proportions last week, this week I am working out and
solving two-variable inequalities. These are equations that must be solved to show that either
they do equal each other or they do not.
Most of the time a graph of some kind is necessary to
show what the problem is stating.
The graphs also show other answers that may fit into the
equations to make them correct.
In problem 68 on page 539 of Elementary and Intermediate Algebra, we are asked to write the
inequality for the provided line graph showing all the possibilities for the number of refrigerators
and the number of TV’s that will fit into an 18-wheeler. The graph is provided below
(Dugopolski, 2012).
Going by the graph the refrigerators are the “x” axis and the TV’s are the “y” axis.
With the
given info of there being 110 refrigerators and there being 330 TV’s, I have my two points.
My
points are (110,0) and (0,330). With these two points I can work out the slope of the line.