Expression Value of Expression
x + y Rational
y + z Irrational
xy Rational
xz Irrational
Let x and y be non-zero, rational numbers and let z be an irrational number. In the first column of the table below is an expression. In the second column, determine whether the value of each expression is rational or irrational.
Expression Value of Expression
x + y
y + z
xy
xz
1 answer