Writing Equations in Slope-Intercept Form from Tables

The y-intercept of the line

The steepness or rate of change of the line

The x-intercept of the line

The maximum value of y

b = mx + y

y = b + mx

y = mx + b

mx = y + b

Average of x values minus average of y values

Change in x over change in y

Change in y over change in x

Sum of y values divided by sum of x values

0

15

5

-5

The slope of the line

Where the graph crosses the y-axis

Where the graph crosses the x-axis

The maximum value of x

-3/2

3/2

2

3

By subtracting 3 from the y-value when x=0

By using the slope to calculate backwards

By adding 3 to the y-value when x=0

By finding where x=0 in the table

y = 3/2x + 5

y = 2/3x + 5

y = 3x + 5

y = 5x + 3/2

By calculating the area under the curve

By measuring the slope with a ruler

By ensuring all points from the table are on the graphed line

By checking if the x-intercepts match

To find the x-intercept

To check the accuracy of the equation

To calculate the total area

To determine the maximum y-value