REAL NUMBERS REVIEW FOR TEST

Front

What is a real number?

Back

A real number is any number that can be found on the number line, including both rational and irrational numbers.

Front

Define rational numbers.

Back

Rational numbers are numbers that can be expressed as the quotient or fraction of two integers, where the denominator is not zero.

Front

What are irrational numbers?

Back

Irrational numbers are numbers that cannot be expressed as a simple fraction; they have non-repeating, non-terminating decimal expansions.

Front

How do you convert a percentage to a decimal?

Back

To convert a percentage to a decimal, divide the percentage by 100. For example, 81% = 0.81.

Front

What is the formula to find the total cost of a service with a monthly fee and installation fee?

Back

Total Cost = Monthly Fee * Number of Months + Installation Fee.

Front

Back

Rearrange the equation to isolate x: 60 = 57.95x - 42.95x, then solve for x.

Front

What does it mean to order numbers from greatest to least?

Back

Ordering numbers from greatest to least means arranging them in descending order, starting with the largest number.

Front

What is a scatterplot?

Back

A scatterplot is a graph that shows the relationship between two variables by displaying data points on a Cartesian plane.

Front

What indicates a linear relationship in a scatterplot?

Back

A linear relationship in a scatterplot is indicated by points that form a straight line or a pattern that can be approximated by a straight line.

Front

How do you find the square root of a number?

Back