Parallel and Perpendicular Lines

Front

What does 'm' represent in the equation y=mx+b?

Back

The slope of the line.

Front

What are the slopes of perpendicular lines?

Back

They are opposite reciprocals.

Front

How do you find the slope from the equation y=4x+3?

Back

The slope is 4.

Front

What can be said about the lines represented by the equations y=3x+2 and y=3x-3?

Back

These lines are parallel.

Front

What is the slope of a line parallel to the line whose equation is -2x + y = -7?

Back

The slope is 2.

Front

What is the general form of the equation of a line?

Back

y = mx + b, where m is the slope and b is the y-intercept.

Front

If two lines have the same slope, what can be said about them?

Back

They are parallel.

Front

What is the relationship between the slopes of two lines that intersect at a right angle?

Back

The product of their slopes is -1.

Front

How can you determine if two lines are parallel using their equations?

Back

Check if their slopes are equal.

Front

What is the slope of a line that is vertical?

Back

The slope is undefined.