Algebra 1 5-6 Guided Practice: Parallel and Perpendicular Lines

Solve It! If you copied the graph, could you draw a new line that would not intersect at least one of the other lines in the graph? If so, sketch that line on the canvas. Remember that lines continue infinitely in both directions.

Take Note: Define parallel lines.

Take note: If two lines are parallel, what do you know about their slopes ?

Take Note: Graph two lines that are parallel to each other. Zoom and pan your graph to establish an appropriate viewing window.

Problem 1 Got It?

Take Note: Define perpendicular lines.

Take note: If two lines are perpendicular, what do you know about their slopes ?

Take Note: Graph two lines that are perpendicular to each other. Zoom and pan your graph to establish an appropriate viewing window.

Problem 2 Got It?

Problem 2 Got It?

Take Note: If you know the slope of a line and one point that the line includes, how can you write the equation of that line in point-slope form ?

You may reference the terms from the formula below in your response:

Problem 3 Got It?

Problem 4 Got It? What equation could the architect enter to represent a second beam whose graph will pass through the corner at (0, 10) and be parallel to the existing beam. An equation that represents the existing beam is:

Take Note: Summarize the mathematical content of this lesson. What topics, ideas, and vocabulary were introduced?