4.1-4.3 Review: Writing Linear Equations

Front

What are the slopes of parallel lines?

Back

Identical.

Front

What are the slopes of perpendicular lines?

Back

Opposite reciprocals.

Front

Write the point-slope form equation of the line containing the point (1,3) with a slope of 6.

Back

Front

Write an equation in Standard Form for a line containing the points (-5,-4) and (2,-1).

Back

Front

What is the slope of a line?

Back

The slope is a measure of the steepness of a line, calculated as the rise over run.

Front

How do you find the slope between two points (x1, y1) and (x2, y2)?

Back

Slope (m) = (y2 - y1) / (x2 - x1).

Front

What is the slope-intercept form of a linear equation?

Back

Front

What does the y-intercept represent in a linear equation?

Back

The y-intercept is the point where the line crosses the y-axis.

Front

How can you determine if two lines are parallel?

Back

Two lines are parallel if they have identical slopes.

Front

How can you determine if two lines are perpendicular?

Back

Two lines are perpendicular if the product of their slopes is -1.