Equation of a Line from a Graph

Front

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

Back

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

Front

What does 'm' represent in the equation y = mx + b?

Back

The slope of the line.

Front

What does 'b' represent in the equation y = mx + b?

Back

The y-intercept of the line.

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 of a line that is perpendicular to a line with a slope of 2?

Back

The slope of the perpendicular line is -1/2.

Front

What is the slope of a line that is parallel to a line with a slope of -3?

Back

The slope of the parallel line is also -3.

Front

If a line passes through the point (0, -2), what is the y-intercept?

Back

The y-intercept is -2.

Front

What is the equation of a line with a slope of 1/3 that passes through the point (0, -2)?

Back

y = 1/3x - 2.

Front

What is the equation of a line with a slope of -4 and a y-intercept of 3?

Back

y = -4x + 3.

Front

If a line has a slope of 0, what type of line is it?

Back

It is a horizontal line.