Question

Are the two lines 15x−3y=12 and y=5x+7 parallel or perpendicular?

Answer 1

Answer:

Parallel.

Step-by-step explanation:

For parallel lines, the line is actually the multiple of that line except the constant because for constant too, the lines would be coincident:

Consider a line:

ax+by+c=0

Its all possible parallel lines would be:

n(ax+by)+c=0

For n to be any real number.

Now if we arrange the two lines accordingly:

15x-3y-12=0

5x-y+7=0