1. Lesson 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.

2. Lesson 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.

3. Lesson 3 (Writing Equations from Tables)
Example 1
Given the following table representing pizza prices, write an equation to represent the same information.
Number of toppings
Total Price 1
$9.00 2
$11.50 3
$14.00 4
$16.50

4. Lesson 3 (Writing Equations from Tables)
Example 2
The following table represents corsage prices. Write an equation to represent the information.
Number of Flowers
Total Price 1
$3.85 2
$5.60 3
$7.35 4
$9.10

5. Lesson 3 (Writing Equations from Tables)
Always make sure when finding the pattern, x values are increasing by 1. x y 1 11 3 15 5 19 7 23

6. Lesson 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 CALC
3. For linear equations, hit #4, press ENTER
4. Make sure to write in form y=mx+b