Question 15 Unsaved Which biconditional is NOT a good definition? Question 15 options: A whole number is odd if and only if the
number is not divisible by 2. A ray is a bisector of an angle if and only if it splits the angle into two angles. An angle is straight if and only if its measure is 180. A whole number is even if and only if it is divisible by 2.
We see that the second definition is not a good definition. We want both parts to have the same truth value, but we see that we can have two angles created by a ray that are not equal. That means the antecedent is false but the consequence is true, which means it's not an iff statement, and a bad definition in this context.
no usually the problem is set up this way
f(x,y)= z
if z= w/e ( it has an x and a y)
where y= (something that has s and t)
and x= ( something that has s and t)
but your question does not make sense to me. Are you sure you wrote it right?
