Finding X and Y Intercepts

The video tutorial explains how to plot the Y-intercept and X-intercept on a graph. It demonstrates solving for the X-intercept by setting the Y value to zero and solving the equation. Once both intercepts are plotted, the video shows how to connect these points to form a straight line. The tutorial concludes with a preview of the next lesson, which will cover determining if a system of equations is dependent or independent and further graphing techniques.

What is the first step in plotting a line on a graph?

• Find the slope

• Plot the Y-intercept

• Calculate the midpoint

• Determine the X-intercept

What is the Y-intercept in the equation 2x - y = 16?

• 2

• 0

• 8

• 16

What is the equation used to find the Y-intercept?

• 2x + y = 16

• y = 16

• x = 8

• 2x - y = 16

When finding the X-intercept, what value is Y set to?

• 1

• 8

• 0

• 16

What does setting Y to zero help find?

• The midpoint

• The X-intercept

• The Y-intercept

• The slope

What equation is used to find the X-intercept in this lesson?

• 2x + y = 16

• 2x - y = 16

• x + y = 8

• 2x = 16

How do you solve for x in the equation 2x = 16?

• Add 2 to both sides

• Multiply both sides by 2

• Subtract 2 from both sides

• Divide both sides by 2

What is the X-intercept of the line in this lesson?

• 8

• 0

• 2

• 16

What is the result of dividing both sides of 2x = 16 by 2?

• x = 8

• x = 16

• x = 0

• x = 2

What is the significance of the X-intercept in graphing?

• It determines the slope

• It is where the line crosses the X-axis

• It is the midpoint of the line

• It is where the line crosses the Y-axis