# Math Help: Formulas You Need for the ACT

09/16/2015

## Math Formulas to Ace the ACT

The SAT provides a list of formulas you will need to complete its math section. The makers of the ACT are not so generous. You will need to have a host of formulas committed to memory for the ACT's math section. Here are a few to get you started.

### Pythagorean Theorem

For any right triangle, the length of the hypotenuse (c) squared is equal to the sum of the squares of the two shorter sides (a and b).

### Logarithms

You should understand logarithms and how to rewrite them.   asks b to what power (y) will result in x. You can rewrite it as:. When x is a product of two different numbers, it may be easier to solve if you remember the following formula:

Solve any quadratic equation in the form ax^2+bx+c=0 with this formula. For those formulas that are difficult to find the difference of squares, or if you are in a rush on an exam, the quadratic formula will be very nice to know.

### Slope-Intercept Formula

In this formula, m is the slope and is the y-intercept.  If you get an equation that is not in this format, you will want to re-write it so that it is. It makes graphing a line much easier.

### Percentages

To find x percent of a number (n),  To find what percent a number (n) is of another number (m),  And finally, n is x percentage of what number?

## For Tutoring in Ocoee

For additional math help, call The Tutoring Center serving Ocoee and Windermere. We offer one-to-one tutoring in math, reading, writing, and test prep. Find out more about our academic programs and call 407-614-5980 to schedule a free diagnostic assessment.

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