FLASHCARD 4.4-4.6 Writing Equations of lines

Front

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

Back

Front

How do you find the slope of a line given two points (x1, y1) and (x2, y2)?

Back

Front

What does it mean for two lines to be perpendicular?

Back

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

Front

What is the y-intercept of a line?

Back

Front

Write the equation of a line with slope 3 and y-intercept -4.

Back

Front

Back

Substitute the x-value into the equation to find the corresponding y-value. If it matches the given y-value, the point lies on the line.

Front

What is the slope of a line that is horizontal?

Back

The slope of a horizontal line is 0.

Front

What is the slope of a line that is vertical?

Back

The slope of a vertical line is undefined.

Front

If a line has a slope of -1, what is the slope of a line perpendicular to it?

Back

The slope of a line perpendicular to it would be 1.

Front

Write the equation of a line that passes through the point (2, 3) with a slope of -2.

Back