Equations of Parallel and Perpendicular Lines

Front

What is the slope of a line that passes through the points (10, 1) and (5, 2)?

Back

-1/5

Front

Which line is PARALLEL to the graph of y = -6x + 3 and goes through the point (-1,4)?

Back

y = -6x + 4

Front

What is the slope of the line represented by the equation 4x - 6y = 11?

Back

2/3

Front

Which graph would be parallel to the graph of the equation y = - ⅔ x + 20?

Back

Any line with a slope of -2/3.

Front

Are the lines 4x - 6y = 11 and 3x + 2y = 9 parallel, perpendicular, or neither?

Back

Perpendicular

Front

What is the formula to find the slope between two points (x1, y1) and (x2, y2)?

Back

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

Front

If two lines have slopes m1 and m2, when are they parallel?

Back

m1 = m2

Front

If two lines have slopes m1 and m2, when are they perpendicular?

Back

m1 * m2 = -1

Front

What is the slope of the line represented by the equation y = 3x + 5?

Back

3

Front

What is the slope of the line represented by the equation y = -2x - 4?

Back

-2