Slope part 2: Calculating Slope

The video tutorial explains how to calculate the slope of a linear function, which measures the steepness of a graph. It covers different methods to find the slope, including examining the linear equation, using a slope triangle, and applying the slope formula. The tutorial provides examples to illustrate these methods and emphasizes the importance of aligning points correctly when using the formula. It concludes with practice questions to reinforce the concepts learned.

What is the role of the coefficient 'm' in the equation y = mx + b?

• It represents the y-intercept.

• It is the independent variable.

• It represents the dependent variable.

• It is the slope of the line.

When using a slope triangle, what does the 'rise' represent?

• The horizontal change between two points.

• The vertical change between two points.

• The distance between the x-intercepts.

• The distance between the y-intercepts.

How do you calculate the slope using two points on a line?

• By dividing the sum of the coordinates by two.

• By subtracting the y-coordinates and dividing by the difference in x-coordinates.

• By multiplying the x-coordinates and y-coordinates.

• By adding the x-coordinates and y-coordinates.

What is the slope of a line passing through the points (2,7) and (9,21)?

• 4

• 3

• 2

• 1

Why is it important to keep the coordinates aligned when using the slope formula?

• To make the calculation faster.

• To avoid missing negative signs and getting incorrect slope values.

• To ensure the slope is always an integer.

• To ensure the slope is always positive.