Simple Algebraic Relationships

Front

What is a variable in algebra?

Back

A symbol, often a letter, that represents a number in mathematical expressions or equations.

Front

What is an equation?

Back

A mathematical statement that asserts the equality of two expressions, typically containing one or more variables.

Front

What does the y-axis represent in a graph?

Back

The vertical line on a graph that typically represents the dependent variable.

Front

What does the x-axis represent in a graph?

Back

The horizontal line on a graph that typically represents the independent variable.

Front

What is a dependent variable?

Back

A variable whose value depends on the value of another variable.

Front

What is an independent variable?

Back

A variable that stands alone and isn't affected by other variables.

Front

How do you identify the dependent variable in a graph?

Back

Look for the variable plotted on the y-axis.

Front

How do you identify the independent variable in a graph?

Back

Look for the variable plotted on the x-axis.

Front

What is the relationship between miles driven and fuel cost?

Back

The total cost in fuel DEPENDS on the miles driven.

Front

What is a coordinate in a graph?

Back

A pair of numbers that define a point's position on a graph, usually written as (x, y).