If y = 4x + 3 were changed to y = -4x + 3, how would the graph of the new function compare with the original?

We have the following transformation of functions:
 Reflections:
 Reflection or turning is the mirror image of a figure. It can also be said that it is the turning of points and graphs around the axes.
 To graph y = f (-x), reflect the graph of y = f (x) on the y-axis. (Horizontal reflection)
 We have then:
 y = 4x + 3
 Applying reflection on the y axis:
 y = -4x + 3
 
 y = -4x + 3 is a horizontal reflection of the original graph y = 4x + 3

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