IDNLearn.com: Your destination for reliable and timely answers to any question. Ask your questions and receive reliable, detailed answers from our dedicated community of experts.

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

Sagot :

Answer: Perpendicular

Step-by-step explanation:

Convert both equations into slope-intercept form

[tex]y=-3x+4[/tex] ⇒ [tex]y=-3x+4[/tex]

[tex]x-3y=15[/tex] ⇒ [tex]y=\frac{1}{3} x-5[/tex]

Determine the slope of each equation

[tex]y=-3x+4[/tex]: SLOPE = -3

[tex]y=\frac{1}{3} x-5[/tex]: 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 not parallel

[tex]-3\neq \frac{1}{3}[/tex]

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 perpendicular to each other.

[tex](-3)*(\frac{1}{3} )=-1[/tex]

Hope this helps!! :)

Please let me know if you have any questions