ACT Prep Math

Front

What is the Pythagorean theorem?

Back

Front

How do you calculate the area of a triangle?

Back

Front

What is a rational number?

Back

Front

What is the formula for the slope of a line?

Back

Front

How do you solve a linear equation?

Back

To solve a linear equation, isolate the variable on one side of the equation using inverse operations.

Front

What is the order of operations in mathematics?

Back

The order of operations is: Parentheses, Exponents, Multiplication and Division (from left to right), Addition and Subtraction (from left to right). This is often remembered by the acronym PEMDAS.

Front

What is a variable in mathematics?

Back

A variable is a symbol (often a letter) that represents an unknown value in mathematical expressions or equations.

Front

How do you find the mean of a set of numbers?

Back

The mean (average) is found by adding all the numbers together and then dividing by the count of the numbers.

Front

What is a function in mathematics?

Back

A function is a relation that assigns exactly one output for each input. It can be expressed as f(x), where x is the input.

Front

What is the difference between a permutation and a combination?

Back

A permutation is an arrangement of items where order matters, while a combination is a selection of items where order does not matter.