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Question:
1212Rewrite each equation in slope-intercept form and compare their slopes:
3y - 2x + 2 = 13x - 19, adding 2x - 2 to both sides
3y = 15x - 21, dividing by 3
y = 5x - 7
And: x + 5y = 10, subtracting x from both sides
5y = -x + 10, dividing by 5
The slopes are negative reciprocals of each other; the lines are perpendicular to each other.
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