Verified Answer :

The lines parallel to x=7   are  x = a,  where "a" is a constant.

So the last answer is true:  x=4

Answer:

D) x = 4

Step-by-step explanation:

The given line is x = 7.

This is a vertical line passes through the points (7, 0) (7, 1) (7, -1)......

Here the value of x coordinate do not change, it is a constant, the value of  y-coordinate changes.

So, any equation x = a, (where "a" is the constant) represents the vertical line.

From the given choices.

x = 4 (4 is a constant)

Therefore, the x = 4 is parallel to the given equation x = 7.

Remember, in parallel equations, the slope will be the same.

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