Parallel and Perpendicular Lines

Parallel Lines have equations with equal slopes and different y-intercepts.  TRUE OR FALSE

• TRUE
• FALSE

Which statement correctly describes the graph?

• The lines are parallel because they have different slopes.
• The lines are NOT parallel because they have different y-intercepts.
• The lines are parallel since they have the same slope and different y-intercepts.
• The lines are perpendicular.

Given the equations below determine if they are parallel or not.  y = 4x - 2 and  y = 5 + 4x

• Yes, They are parallel
• No, They are not parallel

Are the following equations parallel or not? HINT: Solve the second equation for y so that it is in y=mx + b form. y = 2x - 5 and 4x + 2y = 10

• Yes, they are parallel
• No, they are not parallel

Graph. y = 2/3x - 3

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In slope-intercept form, write the equation of the line passing through the points (-3,4) and (-4,2).

• y = -2x + 10

• y = -2x - 10

• y = 2x - 10

• y = 2x + 10

Write the equation in slope-intercept form: 5x - 2y = 12

• y = 5/2x - 6
• y = -5/2x - 6
• y = 5x +12
• y = -5x + 12

What is the slope of the line that is perpendicular to the line y = -5x + 3?

• 5
• 1/5
• -1/5
• -5

Write an equation of a line perpendicular to
y = 2/7x - 5 through (2, -3)

• y = -7/2x + 4
• y = -4x - 7/2
• y = 4x - 7/2
• y = 7/2x + 4

Write an equation for a line that is perpendicular to the graph shown and passes through the point (4,-1)

• y = 2x + 3
• y = 1/2x - 3
• y = 1/2x - 1
• y = -2x + 1