He is willing to spend less than $600 for 36 inches or smaller or more than $1000 for 42 inches or larger. He has a gift certificate for $400 .
Let
x = 36 inches Tv and smaller
y = 42 inches Tv and larger
[tex]\begin{gathered} x<600 \\ y>1000 \end{gathered}[/tex]He has a gift certificate for $400 . The amount he will spend on either T.v can be computed below