Writing the equation of a line from given graph

The video tutorial explains how to find the equation of a line in slope-intercept form, Y = MX + B. It covers the meaning of the slope (M) and y-intercept (B), how to identify the y-intercept on a graph, and how to calculate the slope between two points. The tutorial concludes with deriving the final equation of the line.

What does the 'M' represent in the equation Y = MX + B?

• The y-intercept

• The slope

• The x-intercept

• The constant term

Where is the y-intercept located on a graph?

• At the origin

• Where the line crosses the x-axis

• At the highest point of the line

• Where the line crosses the y-axis

How do you determine the slope of a line?

• By counting the number of grid squares the line crosses

• By finding the y-intercept

• By calculating the change in Y over the change in X

• By measuring the length of the line

If a line goes down 3 units and over 2 units, what is the slope?

• 2/3

• 3/2

• -2/3

• -3/2

What is the final equation of the line discussed in the video?

• Y = -3X + 1

• Y = 3X + 1

• Y = -3X - 1

• Y = 3X - 1