A lot of students get the concepts of “zero slope” and “no slope” confused when they’re first introduced.
Most students think something along the lines of, “They’re the same thing, right? Because zero equals nothing…..?????????? Wait… no, they’re totally different — BUT HOW DO I REMEMBER WHICH IS WHICH?”
Here is a super easy way to remember the difference:
Zero slope means that the line is horizontal. Just like the line that makes the top of a “Z” is horizontal.
No slope means that the line is vertical. Just like the line that makes the beginning of a “N” is vertical.
(If you’re interested in a mathematical explanation to go with the visual reminder, check out Elizabeth Stapel of PurpleMath’s lesson on slope. The part about zero slope and no slope is towards the bottom of the page.)
Many of my students have used this tip with great success — so spread the word! No one needs to be confused about this anymore!
Do you wish someone would just explain math in a way that really makes sense to **you**? Do you yearn for the confidence that comes from really GETTING it? Give me a call at 617-888-0160 or send me an email at firstname.lastname@example.org, and I’d be happy to set up a time for us to have a complimentary conversation to explore whether or not it would be a good fit for us to work together!