Exploring Slopes of Lines: Positive, Negative, Zero, and Undefined

The video tutorial covers the concept of slope, using a character analogy to explain positive, negative, zero, and undefined slopes. It demonstrates how to calculate slope from a graph using rise over run and from ordered pairs using equations. The tutorial also clarifies the difference between zero and undefined slopes with relatable examples, such as Lamborghinis and unicorns, to help students understand the concepts better.

What does a positive slope indicate about the direction of the line?

• The line is flat

• The line is vertical

• The line is going downhill

• The line is going uphill

If a line has a negative slope, what is the direction of the line?

• The line is going uphill

• The line is going downhill

• The line is flat

• The line is vertical

How do you calculate the slope from a graph?

• Run over rise

• Rise over run

• Sum of y-coordinates

• Sum of x-coordinates

What is the slope of a line if the rise is 4 and the run is 5?

• 5/1

• 1/5

• 5/4

• 4/5

What is the slope of a line if the rise is -3 and the run is 6?

• 1/2

• 2

• -1/2

• -2

How do you find the slope from ordered pairs?

• Divide the x-coordinates

• Add the x-coordinates

• Subtract the y-coordinates over the x-coordinates

• Multiply the y-coordinates

What is the slope if the y-coordinates are 5 and -1, and the x-coordinates are -2 and 6?

• -3/4

• 3/4

• -3/8

• -3/2

What is the slope of a line if the denominator is zero?

• Negative

• Positive

• Zero

• Undefined

What is the slope of a line if the numerator is zero?

• Negative

• Positive

• Undefined

• Zero

What analogy is used to explain an undefined slope?

• Bicycle

• Airplane

• Unicorn

• Lamborghini