Perpendicular Lines and Midpoints, Distance Formula

Front

What are perpendicular lines?

Back

Perpendicular lines are lines that intersect at a right angle (90 degrees).

Front

What is the distance formula?

Back

Front

How do you find the midpoint between two points?

Back

Front

What is the slope of a line?

Back

Front

What does it mean for lines to be parallel?

Back

Parallel lines are lines in a plane that never meet; they have the same slope.

Front

If a line has a slope of 5, what is the slope of a line parallel to it?

Back

A line parallel to a line with a slope of 5 will also have a slope of 5.

Front

What is the equation of a line in slope-intercept form?

Back

The equation of a line in slope-intercept form is: y = mx + b, where m is the slope and b is the y-intercept.

Front

How do you calculate the perimeter of a triangle?

Back

The perimeter of a triangle is the sum of the lengths of its sides: P = a + b + c.

Front

What is the relationship between the slopes of perpendicular lines?

Back

The slopes of perpendicular lines are negative reciprocals of each other. If one line has a slope m, the other line's slope is -1/m.

Front

What is the y-intercept of a line?

Back

The y-intercept is the point where the line crosses the y-axis, represented as (0, b) in the equation y = mx + b.