Question

What are the excluded values of `y=(3x)/(2x+6)`?

Answer 1

`x=-3`

Explanation:

`"the denominator of y cannot be zero as this would make y"`
`"undefined. Equating the denominator to zero and solving"`
`"gives the value that x cannot be"`

`"solve "2x+6=0rArr2x=-6rArrx=-3`

`x=-3larrcolor(red)"is the excluded value"`