Unit 7 Study Guide

Front

What is the definition of absolute value?

Back

The absolute value of a number is its distance from zero on the number line, regardless of direction.

Front

What does it mean for two numbers to be opposites?

Back

Two numbers are opposites if they are the same distance from zero on the number line but in opposite directions.

Front

How do you compare negative numbers?

Back

When comparing negative numbers, the number with the greater absolute value is actually the smaller number. For example, -9 is less than -3.

Front

What is the result of –(–52)?

Back

The result is 52.

Front

Which is greater: -128 or -115?

Back

-115 is greater than -128.

Front

What is the absolute value of -12.76?

Back

The absolute value of -12.76 is 12.76.

Front

If a number is less than zero, what can we say about its absolute value?

Back

Its absolute value will always be a positive number.

Front

What does the notation |x| represent?

Back

|x| represents the absolute value of x.

Front

Which of the following is true: |-16| = -16?

Back

This statement is false; |-16| = 16.

Front

What is the closest point to -7.8 on a number line if the options are N, L, M, K?

Back

The closest point is N.