Final Review #1 (PEMDAS, Functions, Equations)

Front

What does PEMDAS stand for?

Back

PEMDAS stands for Parentheses, Exponents, Multiplication and Division (from left to right), Addition and Subtraction (from left to right). It is the order of operations used to solve mathematical expressions.

Front

How do you evaluate a function at a given value?

Back

To evaluate a function at a given value, substitute the value into the function's equation and simplify.

Front

What is the solution to the equation 7x - 11 = 5x + 25?

Back

x = 18.

Front

What is the first step in solving the equation 3c + 5 = 23?

Back

Subtract 5 from both sides to isolate the term with c.

Front

What is the result of simplifying (15 ÷ 3)² + 9 ÷ 3?

Back

The result is 28.

Front

What is the definition of a function?

Back

A function is a relation that assigns exactly one output for each input.

Front

What does it mean to simplify an expression?

Back

To simplify an expression means to reduce it to its simplest form, combining like terms and performing operations.

Front

What is the value of r(-2) if r(x) = 2x?

Back

r(-2) = -4.

Front

What is the solution to the equation 3c + 5 = 23?

Back

c = 6.

Front

What is the result of 14 - 2?

Back

The result is 12.