Parallel Perpendicular

Find the equation of the line that passes through (-20, 2) and is perpendicular to the line shown in the graph.

Two lines are parallel when...

• They have one negative and one positive slope

• They have the same b-value (y-intercept)

• They have the same slope but different b-value (y-intercept)

• They have opposite reciprocal slopes

• 8y = 5x + 40

• 5y = 8x - 15

• 8x - 5y = 50

• -3x + 2y = 16

• 3x + 2y = 4

Select all true statements.

• 3y = 9x + 12 is parallel

• 3x - y = 10 is parallel

• -12y = 4x - 60 is perpendicular

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Choose the most precise answer: These streets are

• Parallel

• Perpendicular

• Intersecting

Slopes of parallel lines are...

• opposite reciprocals.

• opposites.

• the same.

• always 7.

Slopes of perpendicular lines are...

• opposite reciprocals.

• opposites.

• identical.

• always 7.

What is the slope of a line perpendicular to 5?

• 5

• 1/5

• -1/5

• -5