Substitute a Rule Questions: Any Advice?

kvitka22

I almost have LG down but I still have trouble with the questions that ask to substitute a rule for another rule to get the same results. Any general tips on approaching these kinds of questions?

dellliiiaaa

The first thing that you want to do before testing anything out is look at your previous diagrams since this question tends to be last.The rule sub should be present in EVERY VALID diagram you have made in the past. If it is not represented then it cannot be correct because to make them you were following the original rule.

How to test out the answer choices is by making a diagram where you follow the answer choice's new rule and try to break the original rule. If you are able to do this then the answer is wrong. So in other words plug in and try to break original rule, if you can then it wrong.

Beware of overly restrictive rules. These DO work like the original rule BUT go a step too far and add an extra restriction in some way and therefore wrong.

If you are down to two answer choices that once plugged in don't break the original rule, you will find that the wrong answer is going to be the overly restrictive one.

Hope this helps!