Through (4,-4) parallel to y=3

y = -4

Explanation:
The graph of y = 3 is horizontal.

The slope must be 0 for a line to be horizontal, and thus parallel to y=3.

In slope-intercept form (y = mx + b), “m” is the slope, “b” is the y-intercept.
When the slope, m = 0, the equation becomes y = b.

Point (4,-4) is written (x, y).
y = -4

Since y = b, b = -4.

Therefore, the equation is y = -4.

Hope this ; )