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.