8
QuizMultiple Choice
Multiply and Divide Complex Numbers
Question 8 • *PGHS Precalculus B
For z = –3 – 5i, which graph shows z and the product of z · i?
Answer
A
On a coordinate plane, the y-axis is labeled imaginary and the x-axis is labeled real. Point z is (negative 3, negative 5) and point z times I is (5, negative 3).
B
On a coordinate plane, the y-axis is labeled imaginary and the x-axis is labeled real. Point z is (negative 3, negative 5) and point z times I is (3, negative 5).
C
On a coordinate plane, the y-axis is labeled imaginary and the x-axis is labeled real. Point z is (negative 3, negative 5) and point z times I is (negative 5, 3).
D
On a coordinate plane, the y-axis is labeled imaginary and the x-axis is labeled real. Point z is (negative 3, negative 5) and point z times I is (negative 3, 5).