How to determine the rate of change using a graph

The video tutorial explains how to determine the rate of change, or slope, from a graph. It covers methods to calculate slope using graph points, including reading the graph from left to right or right to left. The tutorial also discusses alternative methods for finding slope when points are not easily visible on the graph, such as using coordinate points and the slope formula. The video provides a step-by-step demonstration of using the slope formula to calculate the rate of change.

What is the rate of change equivalent to when analyzing a graph?

• The difference between x and y values

• The product of x and y values

• The slope of the line

• The sum of x and y values

When reading a graph from left to right, what is the change in y-values called?

• Intercept

• Slope

• Rise

• Run

How can you determine the rate of change if the points are not easily visible on the graph?

• By guessing the slope

• By converting the points into coordinate form

• By using a ruler

• By estimating the values

What is the formula for calculating the slope using coordinate points?

• m = (y1 + y2) / (x1 + x2)

• m = (x1 + x2) / (y1 + y2)

• m = (y2 - y1) / (x2 - x1)

• m = (x2 - x1) / (y2 - y1)

In the example provided, what was the corrected x-coordinate for the second point?

• 6

• 7

• 8

• 5