Parallel & Perpendicular Lines (Slope)

Front

What is the slope of a vertical line?

Back

Undefined

Front

What is the slope of a horizontal line?

Back

0

Front

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

Back

Slope

Front

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

Back

Y-intercept

Front

How do you determine if two lines are perpendicular?

Back

If the product of their slopes is -1.

Front

What is the slope of the line represented by the equation y = 4x + 1?

Back

4

Front

What is the slope of the line represented by the equation y = -1/2x + 3?

Back

-1/2

Front

If two lines have the same slope, what can we say about them?

Back

They are parallel.

Front

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

Back

y = mx + b

Front

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

Back

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