Teacher :	...Graph radius compared to height. And I just want you to look
Teacher :	at the shape of the graphs, and see if you think that the shapes
Teacher :	are the same or different, or why they would be the same or different
Teacher :	Are they the same shape?
Student:	They're definitely not the same...
Teacher :	____
Teacher :	____
Student1:	No, because this one had the radius on the bottom, so that scale's smaller,
Student1:	so the slope is smaller...
Teacher :	I want you to take that word slope and throw it away.
Teacher :	Throw it away because the only kind of graph that can have a slope is what?
Student:	Linear.
Teacher :	So, throw it away. Now, are these linear?
Student:	No.
Teacher:	No. Okay. Are they increasing?
Student:	No.
Teacher :	No. Are they decreasing?
Student:	Yes.
Teacher :	And are they curved?
Student:	Yes.
Teacher :	Okay, so, are they similar shapes?
Student:	Yes.
Teacher :	They're more similar than they are different, aren't they?
Student:	Yes.
Teacher :	Okay, do they have a y-intercept?
Student:	No.
Teacher :	Do they have an x-intercept?
Student:	Yeah... No. No.
Teacher :	No. They don't cross the x-axis either.
Teacher :	No. They don't cross the x-axis either.