8.4C 8.5I Check for Understanding

Front

What is the slope?

Back

The slope is a measure of the steepness of a line, calculated as the change in y divided by the change in x.

Front

How do you find slope from an equation?

Back

Look at the number attached to x in the equation.

Front

How do you find slope from a table?

Back

Pick two points from the table and use the formula (y2 - y1) / (x2 - x1) to calculate the slope.

Front

What is the slope of the line represented by the equation y = ½x + 3?

Back

The slope is ½.

Front

What is the slope of the line represented by the equation y = 5x - 2?

Back

The slope is 5.

Front

What is the y-intercept in the equation y = -2x + 5?

Back

The y-intercept is 5.

Front

What does a positive slope indicate about a line?

Back

A positive slope indicates that the line rises as it moves from left to right.

Front

What does a negative slope indicate about a line?

Back

A negative slope indicates that the line falls as it moves from left to right.

Front

How can you determine the slope from a graph?

Back

By selecting two points on the line and using the formula (y2 - y1) / (x2 - x1).

Front

What is the formula for slope?

Back

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