### Which Table Represents a Direct Variation Function: A Full Guide

Deciding which table represents a direct variation function is done by checking if the table of values presents a proportional relationship using the formula for direct proportion. It may seem like a difficult task, but worry no more because you can determine whether a function table displays a direct variation function or not within seconds. […]

### What Is 2i Equal To? – Imaginary and Complex Numbers

Solving what is 2i equal to in algebra requires some knowledge of imaginary and complex numbers. The expression $2i$ is an imaginary number that is one of the roots of the quadratic polynomial $x^2+4$ or the square root of $-4$. This is because the square root of negative numbers does not exist in the real […]

### Right Prism: Definition, Explanation and Examples

The right prism is a three-dimensional solid figure with parallel, similar-shaped polygons at the top and bottom, and these polygons are connected vertically at an angle of $90^{o}$. In this guide, we will learn what a solid figure is. What does a right prism mean, and what are its types, the formula for the surface […]

### 270 Degrees Angle – Explanation & Examples

A 270 degree angle is three-fourths or $dfrac{3}{4}$ of the complete circular angle of $360^{o}$. Angles are formed by the intersection of two lines or rays, and the space between the intersection of lines or rays is called the angle. The angle of 270 degrees is greater than a right angle, an example of a […]

### Upside Down U in Math- Detailed Explanation

The upside down U in math, i.e., “$cap$” is the symbol of intersection. Mathematical symbols like “$cap$” and “$cup$” are frequently used in set theory. If we invert the normal union symbol “$cup$,” then we will get an upside-down U symbol “$cap$”. Union and intersection concepts are heavily used in solving problems related to Sets […]

### What is 0 on a Graph? Explanation and Examples

The $0$ on a graph is the reference point for all other points. The graph of a $0$ function has an output of zero irrespective of any input. So how do we draw the $0$ on a graph in a number line? To draw the graph of $0$ for a function, we will say that […]

### What Is the Integral of Arctan x And What Are Its Applications?

The integral of $arctan x$ or the inverse of tan x is the function that returns the inverse tangent of x as its derivative. It is equal to: $int arctan xphantom{x}dx= x arctan x -dfrac{1}{2} ln|1 + x^2| + C$. In this complete guide, learn how to derive the formula for arctan x and how […]

### When Does a Quadratic Function Have No Real Solution?

A quadratic equation has no real solution if the value of the discriminant is negative. When we find the roots of a quadratic equation, we usually come across one or two real solutions, but it is also possible that we don’t get any real solutions. In this article, we will discuss quadratic equations in detail […]

### What Is -b/2a and Why Is It Important in Math?

The expression -b/2a is based on the constants of a quadratic equation and allows us to identify the vertex of a parabola. If you’re looking for an article that helps you understand the –b/2a and the vertex form, you just reached the right one. This discussion covers everything you need to know about this expression […]

### How To Find Square Root of 9/16: Examples and Explanation

The square root of 9/16 is $dfrac{3}{4}$. Solving the square root of a fraction can seem complex initially, but once you get the hang of it, it will be much easier. In mathematics, it is always convenient to divide complex problems into smaller parts before solving them. This guide will help you break down complex […]

Factoring quadratics is breaking down the factors of a quadratic expression, and since a quadratic expression is a polynomial of degree 2, then a quadratic polynomial has at most two real roots. In factoring a quadratic expression, we have to identify the two factors (of degree 1) that will give the initial quadratic expression when […]

### Box Method for Factoring Trinomials: A Step-by-Step Guide

The box method is considered one of the easiest and most fun ways of factoring trinomials because it uses a box to factor a quadratic polynomial completely. You have to place the first and last terms of the quadratic expression in the box and perform the indicated steps to obtain the factors. In this guide, […]

### Descartes Rule of Signs in Finding Roots of a Polynomial

The Descartes Rule of Signs is a technique used in polynomials to determine the number of positive and negative real roots. It makes use of the signs of the coefficients of the terms of the polynomial by counting the times of change in signs of the coefficients. This technique is important in locating the real […]

### How To Find 16 Square Root: Detailed Explanation

The square root of $16$ is $4$. The square root of $16$ can be written as $sqrt{16}$, as we know the square root symbol is $sqrt{}$ and the answer of $sqrt{16}$ is $4$. Solving the square root of any number is quite easy, and all you need to do is have a basic concept of […]

### Halfplane: Definition, Detailed Examples, and Meaning

If we draw a vertical line in a plane, all the points on one side of the line will make a half-plane. Whenever we draw a straight line in the coordinate plane, it will divide the plane into two halves, and if we take all the points on one side, then the set of those […]

### How to Find the Volume of the Composite Solid?

To find the volume of a composite solid, we add the volumes of all the solid figures combined that make the composite solid. The calculated volume then can also be used to calculate the surface area of the solid further. In this guide, we will learn what a solid is, how you calculate its volume, […]

### How Hard is Calculus? A Comprehensive Guide

Calculus is not that hard if you have a good understanding of its prerequisites, such as algebra and pre-calculus. The name calculus sends a shiver down the spine of many students. Is the subject of calculus really this hard? Basic calculus is not that hard, but if a student has a lax attitude or behavior […]

### Greatest Common Monomial Factor — Explanation and Examples

The greatest common monomial factor is the product of common factors of all the given monomials. For example, if you are given three monomials, $6xy$, $4xy$ and $12xy$, then the product of common factors of each monomial will be called the G.C.F of the monomial. The greatest common factor (G.C.F) is used in mathematics to […]

### Coefficient Matrix — Explanation and Examples

A matrix that consists of the coefficients of a linear equation is known as a coefficient matrix. The coefficient matrix solves linear systems or linear algebra problems involving linear expressions. In the study of matrices, the coefficient matrix is used for arithmetic operations on matrices. A method like Cramer’s rule utilizes coefficient matrices to find […]

### Factoring Monomials — Explanation and Examples

The term factoring monomials mean to factorize a monomial into a product of two or more monomials. In this complete guide, we will discuss in detail what a monomial means and how we factorize a monomial, along with related examples. What Is Factoring Monomials? The term factoring a monomial means that we break down the […]

### Function Operations – Explanation and Examples

Function operations are the arithmetic operations that are used to solve a function. The arithmetic operations applied to a function are addition, subtraction, multiplication, and division. In this article, we will learn about functions and how we can apply different operations to functions. What Are Function Operations? Function operations are the arithmetic rules we can […]

### Expanded Form Exponents — Explanation and Examples

If we expand a number as a summation of individual digits multiplied by powers of $10$, then we call it the expanded form exponents. In this topic, we will learn how to expand any given number using exponents. We will cover integers as well as decimal numbers using many numerical examples. What Is Expanded Form […]