# Chapter 1 - Linear Functions - 1.5 Finding Equations of Lines - 1.5 Exercises: 57

neither

#### Work Step by Step

5x+y=7 y=-5x+7 2y=10x-9 y=5x-$\frac{9}{2}$ The slopes of these two lines are -5 and 5. These are neither equal nor opposite reciprocals of each other. Therefore, these two lines are neither parallel nor perpendicular.

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