Presentation on theme: "Lesson 3 (Writing Equations from Tables)"— Presentation transcript:
1Lesson 3 (Writing Equations from Tables) How can you write an equation from a table?What does m represent?For linear equations, look for a pattern.Must be in y=mx+b format. If it needs to be in functional notation, replace y= with f(x)=m represents slope. To find this value, look for the common difference in y values.
2Lesson 3 (Writing Equations from Tables) What does b represent?B represents the y intercept.To find this value, look to see what needs to be added or subtracted to get to first value in table.
3Lesson 3 (Writing Equations from Tables) Example 1Given the following table representing pizza prices, write an equation to represent the same information.Number of toppingsTotal Price1$9.002$11.503$14.004$16.50
4Lesson 3 (Writing Equations from Tables) Example 2The following table represents corsage prices. Write an equation to represent the information.Number of FlowersTotal Price1$3.852$5.603$7.354$9.10
5Lesson 3 (Writing Equations from Tables) Always make sure when finding the pattern, x values are increasing by 1.xy111315519723
6Lesson 3 (Writing Equations from Tables) How do you find an equation from a table on the calculator?1. Input table (STAT, EDIT)2. Go back to STAT, this time arrow over to CALC3. For linear equations, hit #4, press ENTER4. Make sure to write in form y=mx+b