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Which two lines are parallel?

I. 5y=-3x-5


II.5y=-1-3x


III.5y-2x=-1


a.
I. and II.
c.
II. and III.
b.
I. and III.
d.
No two of the lines are parallel.

Respuesta :

Equation: 5y=-3x-5
Divide Equation by 5, 
y = -3/5 - 1

Slope = -3/5

Equation: 5y=-1-3x
Divide Equation by 5, 
y = -3/5x - 1/5

Slope = -3/5

Equation: 5y-2x=-1
5y = 2x - 1
Divide equation by 5, 
y = 2/5 x - 1/5

Slope = 2/5

We know, Parallel lines must be same slope, & 1st and 2nd has same so they are parallel.

In short, Your Answer would be Option A) I and II

Hope this helps!

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