Question

Describe how you can use the information in a table showing a linear relationship to find the slope and y-intercept for the equation

Answer 1

The slope from a table can be found by finding what number keeps adding on new points. (horrible wording sorry)
EXAMPLE:
x              y
0              2
1              4
2              6
3             8
4              10
for the X values it keeps adding by 1 and the Y values keep adding by 2. Since the slope is the change in y over x the slope would be 2/1 therefore simplifying to a slope of 2. To find the y intercept, you have to look for a value in which the X value is 0. From the table, this would be 2 so the y int is (0,2)