Circle R is shown. Tangents F G and H G intersect at point G outside of the circle to form an angle with a measure of 50 degrees
. Point E is on the second arc. Arc F H has a measure of x degrees. In the diagram of circle R, m∠FGH is 50°. What is mAngle F E H? 130° 230° 260° 310°
The reason we replace every x with -x is to perform the y axis reflection. For instance, if the input is x = 2, then we reflect over the y axis to plug in -x = -2 instead.