Exploring Slopes of Parallel and Perpendicular Lines

What is the correct form of the equation y + 5 = 2(x - 5)?

• Point-slope form

• Quadratic form

• Slope-intercept form

• Standard form

Which of the following is NOT a valid form of a linear equation?

• Standard form

• Hybrid form

• Point-slope form

• Slope-intercept form

What is the slope of the line passing through the points (3, 4) and (-1, -4)?

• 4

• 1

• 2

• 3

What is the definition of parallel lines?

• Lines that have different slopes

• Lines that intersect at right angles

• Lines that form a triangle

• Lines that do not intersect

What is the product of the slopes of perpendicular lines?

• 1

• Undefined

• 0

• -1

In the example with the trapezoid, what was the slope of segment RT?

• 4

• 2

• 1

• 3

What is the slope of the line y = -3x + 12?

• 1/3

• 3

• -1/3

• -3

Which of the following pairs of slopes indicate perpendicular lines?

• 2 and -1/2

• 3 and 1/3

• 1 and -1

• 4 and 1/4

What is the slope of the line y = -2x + 3?

• 1/2

• -1/2

• 2

• -2

Which of the following lines is perpendicular to y = 1/2x + 1?

• y = 2x + 3

• y = -2x + 3

• y = -1/2x + 3

• y = 1/2x - 3