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# lecture 1 content

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# lecture 1 content

description of slope and y intercept

description of slope and y intercept

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### lecture 1 content

1. 1. Lecture 1: Slope & Intercept<br />
2. 2. Y-intercept<br />Where the line crosses the y-axis<br />The value for x will always be 0<br />You figure out the value for y<br />
3. 3. For Example, what is the y-intercept of this line? <br />
4. 4.
5. 5. Slope<br />Different ways to think about slope<br />Rise over run<br />Change in y over change in x<br />How to figure it out? <br />What is the y intercept? We’ll call that (x1, y1)<br />Determine the coordinates of another point on the line<br />We’ll call that (x2, y2)<br />Determine the change in y (y2-y1)<br />Determine the change in x (x2-x1)<br />Put the change in y over the change in x<br />That value is your slope<br />Let’s practice with our previous graph<br />