Equations of Parallel and Perpendicular Lines: Quiz
What is the slope of a line that is parallel to the line y = -1/5?
A. -1/5
Which statement is true about the graphs of the two lines y=-8x-5/4 and y=1/8x+4/5 ?
A. The lines are perpendicular to each other because -8 and 1/8 are opposite reciprocals of each other.
Is AB parallel to CD? Explain.
A. Yes, because both lines have a slope of 4/3.
What is the equation of the line that is parallel to the line x = -2 and passes through the point (-5, 4)?
A. x=-5
What is the slope of a line that is parallel to the line y = 3/4x + 2?
C. 3/4
What is the slope of a line that is perpendicular to the line y = 1/2x + 5?
D. 2
Which statement is true about the graphs of the two lines y = -6 and x =1/6 ?
D. The lines are perpendicular to each other because the graph of y = -6 is a horizontal line with a slope of 0, and the graph of x = 1/6 is a vertical line with a slope that is undefined.
What is the slope of a line that is perpendicular to the line y = 1?
D. undefined
What is the y-intercept of the equation of the line y=3/5x+10 that is perpendicular to the line and passes through the point (15,-5)?
D. y=-5/3x+20
Is AB perpendicular to CD? Explain.
No, because the slope of AB is 5/3 and the slope of CD is -3/4.