# Category: Algebra

### Determine if a point is on a line

We will look at 2 examples Example 1 is determining if the y-intercept goes through a specific point given 2 known points on the line Example 2 is determining if. read more…

### Solving quadratic equations using completing the square

Sometimes you are asked to solve a quadratic equation using completing the square. This means you first need to get the quadratic equation into the Square form, then solve. Here. read more…

### Finding the Equation of a Parabola

To find the equation of a parabola, you need some specific data points from the parabola. The following 2 scenarios describe this process. SCENARIO 1 – YOU HAVE THE VERTEX. read more…

### Fibonacci Sequence

The Fibonacci sequence is a special type of sequence. It starts with 0 and 1, then every subsequent number is the sum of the two preceding ones. Each number in. read more…

### Domain & Range of a Function

Sometimes you are given a function on a graph and asked to find the domain and range of that function. But what are the domain and the range of a. read more…

### By Substitution when Elimination Fails

Sometimes solving simultaneous equations cannot be done using the elimination method. For these – usually complex – cases, you can use substitution. Here is an example.

### Inverse Functions

To find the inverse of a function, all you need to do is follow a few basic steps. Below are some examples with increasing level of complexity. EXAMPLE I EXAMPLE. read more…

### Composite Functions

Composite functions are functions that are combined together. This article will present 3 examples showing you how to work with composite functions. EXAMPLE I EXAMPLE II EXAMPLE III

### nth Term of a Linear Sequence

When asked to find the n-th term of a linear sequence, you are asked to find the rule or the formula that allows you to find any term in the. read more…

### Collecting Like Terms

Collecting like terms generally means simplifying an algebraic expression having mutliple terms. This means we are grouping ‘like terms’ together and performing whatever operation needs to be performed on them.. read more…