Please answer and show work . Thanks

1.) Prove that for a complex number z in the form a + bi, and a real number / that Give a geometric interpretation of this equality. 2.) a.) Graph the complex number 3 + 2i and its conjugate on the complex number plane. b.) Graph the complex number -5 - 7/ and its conjugate on the complex number plane c.) Then, describe the geometric transformation shown between a complex number and its conjugate. Imaginary axis Real axis -10 6 -1or