Algebra 1 STAAR Category 2

Front

What is a variable in algebra?

Back

A symbol, often a letter, that represents one or more numbers.

Front

Define an equation.

Back

A mathematical statement that asserts the equality of two expressions.

Front

What is the purpose of solving an equation?

Back

To find the value(s) of the variable(s) that make the equation true.

Front

What does it mean to isolate a variable?

Back

To manipulate an equation to get the variable on one side and all other terms on the other side.

Front

What is the distributive property?

Back

a(b + c) = ab + ac; it allows you to multiply a single term by each term in a sum.

Front

Define a linear equation.

Back

An equation that makes a straight line when graphed, typically in the form y = mx + b.

Front

What is the slope of a line?

Back

The rate of change of y with respect to x, often represented as 'm' in the equation y = mx + b.

Front

What does the y-intercept represent?

Back

The point where the line crosses the y-axis, represented as 'b' in the equation y = mx + b.

Front

What is a function?

Back

A relation where each input has exactly one output.

Front

How do you determine if a relation is a function?

Back

By checking if any input corresponds to more than one output.