Understand the absolute value of a rational number as its distance from 0 on the number line; interpret absolute value as magnitude for a positive or negative quantity in a real-world situation. For example, for an account balance of -30 dollars, write |-30| = 30 to describe the size of the debt in dollars.
One of the lowest places in Europe is 23 feet below sea level. We can use “-23 feet” to describe its elevation, and “ feet” to describe its vertical distance from sea level. In the context of elevation, what would each of the following numbers describe?
37 feet
feet
-6 feet
feet
Water freezes at 0 degrees Celsius. For each pair of temperatures, which temperature is closest to the freezing point of water? Use absolute value to explain your reasoning.
or
or
or
14.3
Activity
Standards Alignment
Building On
Addressing
Building Toward
F-IF.7.b
Graph square root, cube root, and piecewise-defined functions, including step functions and absolute value functions.
