The graph represents the complex numbers z1 and z2 . What are their conjugates? What is the quotient of z1 ÷ z2?

Answer:
• z1* = 7-2i
• z2* = -3+i
• z1*/z2* = -2.3 -0.1i
Step-by-step explanation:
The conjugate is the same number with the imaginary part negated. The conjugate of 7+2i is 7-2i; the conjugate of -3-i is -3+i.
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The ratio of the conjugates is ...
z1*/z2* = (7-2i)/(-3+i) = (7-2i)(-3-i)/((-3+i)(-3-i)) = (-21+6i-7i-2)/((-3)^2-(i)^2)
= (-23 -i)/10
= -2.3-0.1i