Exploring Midpoint and Distance in the Complex Plane

Exploring Midpoint and Distance in the Complex Plane

Assessment

Interactive Video

Created by

Ethan Morris

Mathematics

8th - 12th Grade

Hard

The video tutorial explains how to plot two complex numbers, z and w, on the complex plane. It then demonstrates how to calculate the distance between these numbers using the Pythagorean theorem. Finally, it shows how to find the complex number that is exactly halfway between z and w, which involves calculating the midpoint of their real and imaginary parts.

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What are the complex numbers z and w introduced in the video?

z = -2 + 3i, w = 5 + i

z = 2 + 3i, w = -5 - i

z = 2 - 3i, w = 5 - i

z = 3 + 2i, w = -5 + i

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the real part of the complex number z?

3

2

-1

-5

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Where is the complex number w located on the complex plane?

(2, 3)

(-5, -1)

(5, 1)

(-2, -3)

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the distance between the complex numbers z and w?

Square root of 65

Square root of 81

Square root of 16

Square root of 49

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which theorem is used to calculate the distance between z and w?

Pythagorean theorem

Binomial theorem

Euclidean algorithm

Fundamental theorem of algebra

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the change in the real axis when moving from w to z?

4

7

2

5

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the imaginary part of the midpoint between z and w?

1

2

3

4

8.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How do you find the real part of the midpoint between two complex numbers?

By subtracting the imaginary parts and dividing by 2

By adding the real parts and dividing by 2

By subtracting the real parts and dividing by 2

By adding the imaginary parts and dividing by 2

9.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the real part of the midpoint between z and w?

-3/2

3/2

1/2

-1/2

10.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Where is the midpoint between z and w located on the complex plane?

(-1.5, 1)

(1.5, -1)

(1.5, 1)

(-1.5, -1)

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