Pre-Algebra

Composition of Functions

Composition of Functions 150 150 SchoolTutoring Academy

A function is a relation that assigns to each input value exactly one output value. A function can be defined as a rule that relates how one quantity depends on…

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Finding the Inverse of a Function

Finding the Inverse of a Function 150 150 SchoolTutoring Academy

Inverse of a function The word inverse comes from the word invert which means opposite, upside down. Let f and g be two functions such that function g is inverse…

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Introduction to Functions: Understanding Domain and Range

Introduction to Functions: Understanding Domain and Range 150 150 SchoolTutoring Academy

A function can be defined as a rule that relates how one quantity depends on other quantities. A function is a relationship between two variables. The first variable is called…

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Operations on Functions: Adding and Subtracting Functions

Operations on Functions: Adding and Subtracting Functions 150 150 SchoolTutoring Academy

A function is a relation that assigns to each input value exactly one output value. Like numbers and polynomials we can add, subtract, multiply and divide functions which results into…

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Factoring Quadratic Equation

Factoring Quadratic Equation 150 150 SchoolTutoring Academy

A quadratic equation is a one-variable polynomial equation of the second degree whose general form is: ax2 + bx + c = 0, where a, b and c are constants…

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Multiply and Divide Complex Numbers

Multiply and Divide Complex Numbers 150 150 SchoolTutoring Academy

Multiplication of Complex Numbers The product of complex numbers a + bi and c + di is given as: (a + bi) + (c + di) = (ac – bd)…

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Conjugate, Addition and Subtraction of Complex Numbers

Conjugate, Addition and Subtraction of Complex Numbers 150 150 SchoolTutoring Academy

Conjugate of complex number The conjugate of a complex number z = a + bi is: a – bi Example: Conjugate of 7 – 5i = 7 + 5i Addition…

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Algebraic Identities

Algebraic Identities 150 150 SchoolTutoring Academy

Solving algebraic problems get easy with readily available expressions. These expressions are knows as algebraic identities or rules which makes the job of a person easy, fast and reduces the…

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Introduction to Complex Numbers

Introduction to Complex Numbers 150 150 SchoolTutoring Academy

A complex number is a number which can be put in the form a + bi, where a and b are real numbers and i is called the imaginary unit,…

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Scientific Notation

Scientific Notation 150 150 SchoolTutoring Academy

Scientific notation is a way of writing numbers that are too large or too small to be conveniently written in standard notation. In scientific notation the number is written as:…

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