Which pair of equations represents parallel lines?

a) y=2x=7
y=x=7
b) y=2x-7
y=-1/2-7
c) y=7
x=7
d) y=2x+7
y=2x-7

It should be just D) y=2x+7

y=2x-7

Step-by-step explanation:

Parallel lines have the same slope :D

21/58.

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for this case we have by definition, if two lines are perpendicular, then the product of their slopes is -1.

then, given the following line:

so,

we are looking for m_ {2}:

then, the line is given by:

we find "b" replacing the given point:

finally, the equation is:

option c