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SVETLANKA909090 [29]
3 years ago
9

Determine if the lines are parallel perpendicular or neither x-3y=15 and y=-3x+4

Mathematics
1 answer:
geniusboy [140]3 years ago
8 0

Answer: Perpendicular

Step-by-step explanation:

Convert both equations into slope-intercept form

y=-3x+4 ⇒ y=-3x+4

x-3y=15 ⇒ y=\frac{1}{3} x-5

Determine the slope of each equation

y=-3x+4: SLOPE = -3

y=\frac{1}{3} x-5: SLOPE = 1/3

When two lines are parallel to each other, their slopes will be the same. However, since -3 does not equal 1/3, they are <u>not parallel</u>

-3\neq \frac{1}{3}

When two lines are perpendicular to each other, the product of their slopes will be -1. Since -3 multiply by 1/3 is -1, they are <u>perpendicular to each other.</u>

(-3)*(\frac{1}{3} )=-1

Hope this helps!! :)

Please let me know if you have any questions

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