Algebra 1 Semester 1 Vocab

Front

What does rate of change mean?

Back

Same as slope.

Front

How do the slopes of perpendicular lines compare?

Back

They are opposite reciprocals.

Front

What is the equation represented by x + y = 50?

Back

Equation.

Front

What is the answer to a subtraction problem called?

Back

Difference.

Front

What is a dependent variable?

Back

A y-value. It depends on the x-value.

Front

What is the definition of slope?

Back

The ratio of the rise over the run in a linear equation.

Front

What is an independent variable?

Back

An x-value. It causes the y-value to change.

Front

What is the difference between an expression and an equation?

Back

An equation contains an equals sign, while an expression does not.

Front

What does the term 'intercept' refer to in a graph?

Back

The point where a line crosses the x-axis or y-axis.

Front

What is the formula for calculating the slope between two points (x1, y1) and (x2, y2)?

Back

Slope = (y2 - y1) / (x2 - x1).