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To prove lines are parallel, you need a third line. We at Shmoop (and the rest of the world) call it a transversal.
ACT Math: Coordinate Geometry Drill 5, Problem 2. Which of these three lines are parallel?
SAT Math 11.4 Geometry and Measurement. What is the y-intercept of a line parallel to y – 2x = 4 and passing through the point (1, 2)?
Algebra I Drill 4, Problem 4. Which of the following could be an equation for line l?
Algebra I Drill 4, Problem 5. What is the slope of a line that is parallel to the graph of 8x + 4y = 5?
Algebra I: Drill 5, Problem 1. A line parallel to another line whose graph passes through the point (3, 8) and has a y-intercept of -1 must ha...