Given DEF and EG II DF, complete the proof that m∠1 + m∠2+∠m3=180 I think the answer is
2. ∠1≅ ∠4 and ∠3≅ ∠5
4. Definition of supplementary angles

The input to the function is x and the output is y. write the function such that x can be a vector (use element-by-element operations). a) use the function to calculate y(-1.5) and y(5). b) use the function to make a plot of the function y(x) for -2 ≤ x ≤ 6.