Ch. 3 Review: Parallel & Perpendicular Lines

Front

What are parallel lines?

Back

Lines in a plane that never meet and are always the same distance apart.

Front

What are perpendicular lines?

Back

Lines that intersect at a right angle (90 degrees).

Front

Define alternate interior angles.

Back

Angles that are on opposite sides of a transversal and inside the two lines.

Front

Define alternate exterior angles.

Back

Angles that are on opposite sides of a transversal and outside the two lines.

Front

What are corresponding angles?

Back

Angles that are in the same position on two parallel lines in relation to a transversal.

Front

What are same-side interior angles?

Back

Angles that are on the same side of the transversal and inside the two lines.

Front

How do you find the slope of a line given two points?

Back

Use the formula: slope (m) = (y2 - y1) / (x2 - x1).

Front

What is the slope of the line through points E(5,4) and F(8,1)?

Back

The slope is -1.

Front

How do you calculate the distance from a point to a line?

Back

Use the formula: Distance = |Ax + By + C| / sqrt(A^2 + B^2), where Ax + By + C = 0 is the line's equation.

Front

What is the distance from point P(-4,5) to line m containing points (6,5) and (2,3)?

Back

The distance is 4.5.