How does the graph of y= -(2x+6)^6+3 compare to the graph of the parent function? the graph is compressed horizontally by a factor of 2, shifted left 3, reflected over the x-axis, and translated up 3. the graph is reflected over the x-axis, compressed horizontally by a factor of 2, shifted left 6, and translated up 3. the graph is stretched horizontally by a factor of 2, reflected over the x-axis, shifted left 3, and translated up 3. the graph is reflected over the x axis, stretched horizontally by a factor of 2, shifted left 6, and translated up 3.