Graphing Linear Equations and Points

This video tutorial explains how to graph a linear equation, specifically y = 2x + 1. It covers finding XY pairs, plotting these points on a graph, and drawing a line through them. The tutorial also demonstrates how to handle negative values and complete the graph by drawing a line that extends infinitely in both directions.

What is the equation of the line being graphed in the video?

• y = x - 2

• y = 3x - 1

• y = x + 2

• y = 2x + 1

What is the first step in graphing a line according to the video?

• Find XY pairs that satisfy the equation

• Calculate the y-intercept

• Find the slope of the line

• Draw the line directly

What is the Y value when X is 1 for the equation y = 2x + 1?

• 4

• 2

• 1

• 3

How do you plot the point (1, 3) on the graph?

• Go right 3 and up 1

• Go left 1 and up 3

• Go left 3 and down 1

• Go right 1 and up 3

What is the Y value when X is 2 for the equation y = 2x + 1?

• 6

• 4

• 3

• 5

How do you plot the point (2, 5) on the graph?

• Go left 2 and up 5

• Go right 2 and up 5

• Go right 5 and up 2

• Go left 5 and down 2

What is the Y value when X is -1 for the equation y = 2x + 1?

• -1

• 0

• 2

• 1

How do you plot the point (-1, -1) on the graph?

• Go left 1 and down 1

• Go left 1 and up 1

• Go right 1 and down 1

• Go right 1 and up 1

What is the Y value when X is 0 for the equation y = 2x + 1?

• 3

• 0

• 1

• 2

What is the Y value when X is -3 for the equation y = 2x + 1?

• -4

• -5

• -2

• -3