Understanding Slope and Directed Counting

The video tutorial explains the concept of slopes, focusing on positive and negative slopes using directed measurements. It reviews basic slope calculations, introduces directed counting, and provides examples to illustrate positive and negative slopes. The tutorial emphasizes the importance of direction in calculating slopes and concludes with a summary of the key concepts.

What is the main difference between the two lines shown in the introduction?

• They are both vertical.

• They are both horizontal.

• They have different lengths.

• They are tilted in opposite directions.

What is the correct formula for calculating slope?

• Run over rise

• Rise over run

• Sum of rise and run

• Difference of rise and run

What is the slope of a line if the rise is 2 and the run is 4?

• 1/2

• 2

• 4

• 1

How is a positive rise defined in directed counting?

• Counting from top to bottom

• Counting from bottom to top

• Counting from left to right

• Counting from right to left

What happens to the slope when both rise and run are negative?

• The slope becomes positive.

• The slope becomes zero.

• The slope remains unchanged.

• The slope becomes negative.

In directed counting, what is the result of a negative rise divided by a positive run?

• Positive slope

• Negative slope

• Zero slope

• Undefined slope

What is the effect of switching points A and B on the slope calculation?

• The slope changes sign.

• The slope remains the same.

• The slope becomes zero.

• The slope becomes undefined.

What is the slope of a line if the rise is -2 and the run is 3?

• -3/2

• 3/2

• 2/3

• -2/3

How does directed counting help in distinguishing between two lines?

• By modifying the angle of the lines

• By indicating the direction of rise and run

• By altering the color of the lines

• By changing the length of the lines

If a line has a positive slope, what can be said about its direction?

• It is vertical.

• It goes downwards from left to right.

• It goes upwards from left to right.

• It is horizontal.