Determining negative slope from a graph

The video tutorial explains how to determine the slope from a graph. It begins with an introduction to the concept of slope and the importance of finding two coordinate points. The instructor then demonstrates how to use a slope triangle to calculate the slope, emphasizing the creation of a right triangle. The tutorial includes a detailed step-by-step calculation of the slope using given coordinates, highlighting common mistakes and how to correct them. The final result is a negative slope of -2/7, with a reminder to ensure consistent direction when reading points.

What is the first step in determining the slope from a graph?

• Calculate the area under the line

• Identify two coordinate points

• Draw a perpendicular line

• Find the midpoint of the line

What is a slope triangle used for?

• To determine the slope between two points

• To calculate the area of a graph

• To find the midpoint of a line

• To measure the length of a line

How do you calculate the change in Y coordinates?

• Add the Y values of both points

• Multiply the Y values of both points

• Divide the Y values of both points

• Subtract the Y value of the second point from the first

What mistake should be avoided when creating a slope triangle?

• Drawing the triangle on a separate graph

• Using non-integer coordinates

• Creating a triangle that is not a right triangle

• Using more than two points

What is the correct slope if the change in Y is -2 and the change in X is 7?

• 2/7

• -2/7

• 7/2

• -7/2

Why is it important to read the graph from left to right?

• To ensure the slope is calculated correctly

• To find the midpoint of the line

• To determine the length of the line

• To identify the highest point on the graph

What is the final step in determining the slope using a slope triangle?

• Divide the change in Y by the change in X

• Add the changes in X and Y

• Find the midpoint of the hypotenuse

• Calculate the area of the triangle