Find Slope & Y-Intercept from Graphs and Tables

Front

What is the y-intercept of a graph?

Back

The y-intercept is the point where the graph crosses the y-axis, represented as (0, y).

Front

How do you find the slope from a graph?

Back

The slope is found by determining the rise over run between two points on the graph.

Front

What does a positive slope indicate?

Back

A positive slope indicates that as x increases, y also increases.

Front

What does a negative slope indicate?

Back

A negative slope indicates that as x increases, y decreases.

Front

How can you find the slope from a table of values?

Back

Calculate the change in y divided by the change in x between two points.

Front

What is the formula for slope (m)?

Back

m = (y2 - y1) / (x2 - x1) where (x1, y1) and (x2, y2) are two points.

Front

What is the significance of the y-intercept in a linear equation?

Back

The y-intercept represents the value of y when x is 0.

Front

If a line has a slope of 0, what does that mean?

Back

A slope of 0 means the line is horizontal and does not rise or fall.

Front

What does an undefined slope indicate?

Back

An undefined slope indicates a vertical line where x does not change.

Front

How do you identify the y-intercept from a table?

Back

Look for the value of y when x is 0.