Tuesday, May 14, 2013

Unit 5 day 3

Objective: Students will define the y-intercept in math as well as translate it to a real world meaning.
 The y-intercept is where the line crosses the vertical axis/y-axis.
The real world meaning is where the price starts for example is how much the cost to start an installation or something along those lines.
Example: The line intercepts the y axis at the point (0,2), making the y-intercept 2.

Quiz:
1. Can the y-intercept be in the negatives?

2. Does the y-intercept have to be a whole number?

3. Does the y-intercept have to start at 0?

Answer key
1. Yes, the y-intercept can be in the negatives and it can pass through the negative y axis. 

2. No, the y-intercept does not have to be a whole number. 

3. No, the y-intercept can pass through any point on the y-axis

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