Quadratic Formula and the Discriminant - Algebra I

In this video, you will learn about the quadratic formula and the discriminant. The discriminant is the value that determines how many solutions and the type of solutions that a quadratic equation has. The quadratic formula is a method for solving a quadratic equation. In the quadratic formula, there is a part under the radical, which is b^2-4ac. This part of the formula is what's used to find the value of the discriminant. The first step is to put your quadratic equation into ax^2+bx+c form. Next, you identify the values of a, b, and c. Now you will substitute these values into b^2-4ac to find the discriminant. If the value is positive, there are 2 real solutions. If the value is negative, then there are 2 complex solutions. If the value is equal to 0, then there is one real solution.

Quadratic Formula and the Discriminant - Algebra I

Solving Systems of Linear Inequalities - Algebra I

In this video, you will learn how to solve a system of linear inequalities. Linear inequalities have the symbols of greater than, less than, greater than or equal to, and less than or equal to. When you are solving a system of linear inequalities, you solving for the variables. Since these are inequalities, you won't get an exact answer, but you get a range of the solutions. Once you have gotten that, you will shade based upon the symbol in the inequality. The shaded part that overlaps both lines in the solution of the inequality. Any point within that shaded area will make the inequalities true.

Solving Systems of Linear Inequalities - Algebra I

Volume of Pyramid - 7th Grade Math

In this video you will learn how to find the volume of a pyramid. Volume is the amount of capacity a three dimensional shape can hold. A pyramid is a 3D shape. This 7th grade math video will teach you how to find the volume with step by step instructions.

The formula for volume of Pyramid is

Volume = 1/3 ( LxWxH)

Volume of Pyramid - 7th Grade Math