Writing linear equations from a graph

Front

What is the formula for slope?

Back

Slope is known as \( \frac{rise}{run} \)

Front

How do you calculate the slope from a graph?

Back

Use the formula \( \frac{rise}{run} \) to determine the slope.

Front

What does a positive slope indicate about a graph?

Back

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

Front

What does a negative slope indicate about a graph?

Back

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

Front

What does an undefined slope indicate about a graph?

Back

An undefined slope indicates a vertical line where the rise is not defined.

Front

What does a slope of zero indicate about a graph?

Back

A slope of zero indicates a horizontal line where y remains constant.

Front

In the equation y=mx+b, what does 'm' represent?

Back

In the equation y=mx+b, 'm' represents the slope of the line.

Front

In the equation y=mx+b, what does 'b' represent?

Back

In the equation y=mx+b, 'b' represents the y-intercept.

Front

How can you identify the slope from a graph visually?

Back

You can identify the slope by observing the steepness and direction of the line.

Front

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

Back

The y-intercept is the point where the line crosses the y-axis.