Mathematics Grade 11 15 min

Addition input/output tables - four or more digits

Addition input/output tables - four or more digits

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Introduction & Learning Objectives

Learning Objectives Apply the principles of input/output tables to the addition of complex numbers. Determine the constant complex addend (the 'rule') in an addition-based input/output table. Accurately compute the sum of two complex numbers where the real and imaginary parts are integers with four or more digits. Complete missing input or output values in a table representing complex number addition. Translate an addition rule from an input/output table into a function of the form f(z) = z + c. Describe the geometric interpretation of complex number addition as a translation in the complex plane. How can a simple table help us predict the result of complex operations used in designing electrical circuits or video game physics? 💡 This tutorial bridges the familia...
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Key Concepts & Vocabulary

TermDefinitionExample Complex NumberA number of the form z = a + bi, where 'a' and 'b' are real numbers and 'i' is the imaginary unit, satisfying i² = -1.z = 4500 + 7250i Input/Output Table (for Complex Functions)A table that organizes the relationship between a set of input complex numbers and their corresponding output complex numbers, based on a specific rule.If the rule is 'Add 1000 + 2000i', an input of 500 + 300i gives an output of 1500 + 2300i. Complex Addition RuleThe constant complex number that is added to each input value to produce the output value in an addition-based table.For a table where the function is f(z) = z + (2000 + 1500i), the complex addition rule is 'Add 2000 + 1500i'. Real Part (Re(z))The component of a complex n...
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Core Formulas

Complex Number Addition z_1 + z_2 = (a + bi) + (c + di) = (a + c) + (b + d)i To add two complex numbers, add their real parts together and, separately, add their imaginary parts together. Input/Output Table Function Rule Output = f(Input) = z + c The output of the table is determined by a function f(z) that adds a constant complex number, c, to the input complex number, z. To find the rule, calculate c = Output - Input.

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Sample Practice Questions

Challenging
An input/output table follows the rule f(z) = z + c, where c = a + bi. You are given two rows: 1. Input: 2000 + 3000i, Output: -1000 + 8000i 2. Input: 5000 - 4000i, Output: 2000 + 1000i Which of these rows correctly represents the rule for this table?
A.Only Row 1 is correct.
B.Only Row 2 is correct.
C.Both rows are correct.
D.Neither row is correct.
Challenging
The rule for a table is f(z) = z + c. We know that f(zâ‚€) = 5000 - 4000i and f(zâ‚€ + 1000 + 2000i) = 6000 - 2000i. What is the rule c?
A.The information is insufficient to determine c.
B.c = 1000 + 2000i
C.c = -1000 - 2000i
D.c = 4000 - 6000i
Challenging
The addition of a complex number c translates the point representing z = 8400 + 2500i to the origin (0, 0) in the complex plane. What is this rule c?
A.8400 + 2500i
B.8400 - 2500i
C.-8400 + 2500i
D.-8400 - 2500i

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