Writing Equations of Parallel and Perpendicular Lines

What is the slope of a line parallel to a line with a slope of 3?

• 0

• 1/3

• -3

• 3

What form is used to write the equation of a line when given a point and the slope?

• Point-slope form

• Slope-intercept form

• Standard form

• None of the above

How do you find the equation of a line given a point and a slope?

• Quadratic form

• Slope-intercept form

• Point-slope form

• Standard form

What changes in the equation of a line when it is parallel to another line?

• The slope changes

• The y-intercept changes

• Both slope and y-intercept change

• Neither changes

Which form of a line's equation is typically used after using the point-slope form for simplification?

• Point-slope form

• Slope-intercept form

• Standard form

• None of the above

What is the slope of a line perpendicular to a line with slope 2?

• -2

• 1/2

• -1/2

• 2

What is the opposite reciprocal of 1/2?

• -1/2

• 1/2

• -2

• 2

What is the slope of a line perpendicular to another line with slope -5/2?

• -2/5

• 2/5

• 5/2

• -5/2

If a line has a slope of -1/4, what is the slope of a line perpendicular to it?

• -1/4

• -4

• 4

• 1/4

In the point-slope form of a line's equation, what does 'y1' represent?

• The slope of the line

• The x-coordinate of a given point

• The y-coordinate of a given point

• The y-intercept of the line