2, 1) and (5,-8).
Use exact numbers.
y=

Which number produces a rationale number when multiplied by 1/5

Is the product of two rational numbers irrational or rational? first, make a hypothesis by multiplying two rational numbers. then, use variables such as x=a/b and y=c/d and the closure property of integers to prove your hypothesis.

How to simply and write the answer n a whole number