Writing the perpendicular equation of a line

The video tutorial covers graph sketching, focusing on understanding slopes and perpendicular lines. It explains the concept of opposite reciprocal slopes and how they differ from parallel lines. The tutorial also demonstrates finding the Y-intercept using a given point, emphasizing the importance of slope-intercept form in graphing.

What is the purpose of sketching graphs according to the teacher?

• To make the graph colorful

• To avoid calculations

• To visually understand the graph

• To memorize the graph shapes

What is the relationship between perpendicular lines?

• They have the same slope

• They are parallel

• They intersect at a 90-degree angle

• They never intersect

How do you determine the slope of a line perpendicular to another?

• Use the same slope

• Use the opposite reciprocal slope

• Double the original slope

• Subtract 1 from the original slope

What is the first step in finding the equation of a perpendicular line?

• Use the same slope

• Identify a point on the line

• Calculate the midpoint

• Find the y-intercept

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

• Y = 1/4 X - 2

• Y = 1/4 X + 2

• Y = -1/4 X + 9

• Y = -4 X - 9