.Which variable did you plot on the x-axis, variable did you plot on the y-axis? Explain why assigned the variables in the way my variables are

58 60
49 47
51 55
19 25
37 39
44 45
47 49
36 35
41 40
46 50
58 61

What is the next step in the given proof? choose the most logical approach. a. statement: m 1 + m 2 + 2(m 3) = 180° reason: angle addition b. statement: m 1 + m 3 = m 2 + m 3 reason: transitive property of equality c. statement: m 1 = m 2 reason: subtraction property of equality d. statement: m 1 + m 2 = m 2 + m 3 reason: substitution property of equality e. statement: 2(m 1) = m 2 + m 3 reason: substitution property of equality