Ch. 4 Finals Review Pt. 2

Front

What are perpendicular lines?

Back

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

Front

What are parallel lines?

Back

Two lines that never intersect and have the same slope.

Front

How do you find the slope of a line given its equation in slope-intercept form?

Back

The slope is the coefficient of x in the equation y = mx + b.

Front

What is the slope of the line y = 3x - 5?

Back

The slope is 3.

Front

What is the equation of a line that is perpendicular to y = 3x - 5?

Back

The slope of the perpendicular line is -1/3.

Front

What is point-slope form of a line?

Back

The point-slope form is given by y - y1 = m(x - x1), where m is the slope and (x1, y1) is a point on the line.

Front

Given a slope of 2/3 and a point (-4, 7), what is the point-slope form of the line?

Back

Front

What does it mean for two lines to be parallel?

Back

They have the same slope and will never meet.

Front

If two lines are perpendicular, what is the relationship between their slopes?

Back

The product of their slopes is -1.

Front

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

Back

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