Geometry Unit Review

Front

What is the slope of a line parallel to a line with slope m = 4?

Back

4

Front

What are the slopes of perpendicular lines?

Back

Opposite reciprocals.

Front

Write an equation that is parallel to y = -2x + 4 and runs through the point (-3, 2).

Back

y = -2x - 4

Front

Find the perimeter of the square with coordinates T(4,10), A(8,-2), C(-4,-6), S(-8,6).

Back

50.6

Front

Are the lines y = 12x + 4 and y = 12x + 14 parallel?

Back

YES

Front

Define parallel lines in geometry.

Back

Lines that never intersect and have the same slope.

Front

Define perpendicular lines in geometry.

Back

Lines that intersect at a right angle (90 degrees).

Front

What is the formula for the slope (m) 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

When m1 = m2.

Front

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

Back

When m1 * m2 = -1.