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# A1 3 linear fxns

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### A1 3 linear fxns

1. 1. Slopey = mx + b<br />Algebra 1<br />
2. 2. Slope = = <br />Reminder<br />Rise<br />Run<br />∆ y<br />∆ x<br />
3. 3. Slope – given points<br />
4. 4. y = mx + b<br />The most common form for a linear equation is called slope-intercept form.<br />
5. 5. y = mx + b<br />The most common form for a linear equation is called slope-intercept form.<br />The equation for this form is y = mx + b.<br />
6. 6. y = mx + b<br />x represents the input.<br />
7. 7. y = mx + b<br />x represents the input.<br />y represents the output.<br />
8. 8. y = mx + b<br />x represents the input.<br />y represents the output.<br />m is the slope of the line.<br />
9. 9. y = mx + b<br />x represents the input.<br />y represents the output.<br />m is the slope of the line.<br />b is the y-intercept.<br />
10. 10. To graph:<br />Plot the y-intercept first.<br />
11. 11. To graph:<br />Plot the y-intercept first.<br />From that point, use the slope to rise and run to the next point.<br />
12. 12. To graph:<br />Plot the y-intercept first.<br />From that point, use the slope to rise and run to the next point.<br />Connect with a line.<br />
13. 13. Examples 3 and 4<br />