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Math has been used for centuries to figure out all sorts of things, and with math comes formulas and equations. Equations can be very annoying sometimes, but some days, they can also be easy. It mostly based on how one looks at it.

1. THE QUADRATIC FORMULA
Represented by (x= -b+/- square root( b2 -4ac)/2a). The Quadratic Formula is the greatest formula, due to it being so iconic and easy to use. It’s a part of the quadratic functions, and gives the answer to any quadratic problem. All one has to do is plug in a few numbers.

“It’s easy to use, it’s nice, it’s simple and it’s great, I love it.”
– Gibbson Hunt, 9

2. Y=MX+B
This is the most common formula, and is taught in algebra 1. It is used to represent a line on a graph. It’s the easiest formula to use, and it gives the slope which is represented by m and it gives the y-intercept which is represented by b.

“It’s a cool formula but it’s kind of basic, it’s really simple to use it though.”
– Jackson Buelow, 9

3. THE STANDARD FORM OF A QUADRATIC FUNCTION
Represented by (ax2 +bx +c=0), this is a good equation to run due to its simplicity. Solving and graphing it is easy if one knows what they are doing.

4. THE AXIS OF SYMMETRY FORMULA
This is the most simple formula as all one needs to do is take b from the quadratic equation and make it negative, then divide it by 2a. It is very simple and extremely useful in solving a problem using the quadratic equation.

5. THE PYTHAGOREAN THEOREM
Represented by (a2 +b2=c2), this is a very useful formula for finding out a missing side of a triangle. Not to mention it’s very easy to plug in the numbers, since one can just do the whole thing on a calculator.

6. STANDARD VERTEX FORM
Represented by ( a(x-h)2-k), this is a very common formula, and is part of the quadratic functions. It is very easy to figure out and very easy to change back into standard form.

“It’s really good and I like how simple it is and it helps find transformations.”
– Mathew Villar, 9

7. THE AREA OF A CIRCLE
Represented by A= π r2, this is a very basic and easy formula. It is also very well known and it can be easily done on a calculator.

“The formula is so cool, it helped me a lot in seventh grade.”
-Conner Atkison, 9

8. THE FACTORED FORM OF A QUADRATIC EQUATION
Represented by (y= a(x-r1)(x-r2)). This is one of the quadratic equations, and is a very simple, if not sometimes annoying, equation to solve.

9. THE DERIVATIVE OF A CONSTANT
Represented by (d/dx c=0), this is a short and simple calculus formula. It’s used to show that constant variables do not change with respect to x or any other variables.

10. THE SURFACE AREA OF A SPHERE
Represented by 4π r2, this is far from the best formula, but it’s still very simple. It’s a simple formula to solve, but not the best to come across.

“I believe it’s really good because I need to know the surface area of a sphere at target.”
– Payton Counsell, 10