Finding Slope from a Table

The video tutorial introduces 8th grade students to the concept of finding the slope of a line using a table. It explains the method of rise over run and how to calculate slope by examining changes in x and y coordinates. The tutorial includes examples and practice problems to reinforce understanding, covering scenarios with positive, negative, zero, and undefined slopes.

What is the main objective of today's lesson?

• To learn how to graph a line

• To understand the Pythagorean theorem

• To solve quadratic equations

• To find the slope of a line from a table

What is the formula for finding the slope of a line?

• Run over rise

• Change in x over change in y

• Change in y over change in x

• Sum of x and y coordinates

If the change in y is 2 and the change in x is 1, what is the slope?

• 2/1

• 2

• 1/2

• 1

In the example where the y-coordinates change by -3 each time, what is the slope?

• -3

• 3

• -1

• 1

What is the slope if the change in y is 4 and the change in x is 1?

• 1/4

• 4

• 4/1

• 1

If the change in y is -5 and the change in x is 1, what is the slope?

• 1

• -1

• 5

• -5

What is the slope if the change in y is 0 and the change in x is 2?

• Undefined

• 1

• 2

• 0

What is the slope if the change in y is 2 and the change in x is 0?

• Undefined

• 1

• 0

• 2

What does it mean if the slope is undefined?

• The line is vertical

• The line is diagonal

• The line is horizontal

• The line has no points

What should you do if you get an error message when calculating the slope?

• Check for division by zero

• Recalculate the change in y

• Recalculate the change in x

• Ignore the error