Slope of a Line

Front

What is the formula to calculate the slope (m) of a line passing through two points (x1, y1) and (x2, y2)?

Back

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

Front

Find the slope of the line that passes through the points (10, 1) and (5, 2).

Back

-1/5

Front

What does 'm' represent in the slope-intercept form of a line, y = mx + b?

Back

Slope of the line.

Front

What does 'b' represent in the slope-intercept form of a line, y = mx + b?

Back

y-intercept.

Front

Write the equation of a line with a slope of -1/3 and a y-intercept of -2.

Back

y = -1/3x - 2

Front

How do you find the slope of a vertical line?

Back

The slope of a vertical line is undefined.

Front

How do you find the slope of a horizontal line?

Back

The slope of a horizontal line is 0.

Front

Find the slope of the line that passes through the points (2, 4) and (6, 12).

Back

2

Front

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

Back

-1/3 (the negative reciprocal of 3).

Front

If a line has a slope of 0, what can be said about its orientation?

Back

The line is horizontal.