Heather's math teacher gives her the equation of a line in the xy-plane, and then asks her to perform the following steps:

  1. Draw the given line.
  2. Draw its reflection about the x-axis.
  3. Draw a line that is perpendicular to the reflected line (drawn in step 2) and that intersects the reflected line at its y-intercept.

If the original line Heather is given is y=4x-5, what is the equation of the line she draws in step 3?



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