Adding and subtracting functions g(x) = 2x f (x) = −2x^3 + 2x Find g(x) + f (x)
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The measures of the angles don't change when you translate a figure, because the entire figure is moving as a whole. Imagine having a paper parallelogram, moving it around and flipping it over. Not even dilations would change these angles (for reasons that can be pretty easily visualed but not really proven until geometry)
