Find Slope (graphs, tables, equations)

Front

What is the formula to find the slope (m) between two points (x1, y1) and (x2, y2)?

Back

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

Tags

CCSS.8.EE.B.5

Front

What does a slope of 0 indicate about a line on a graph?

Back

The line is horizontal.

Tags

CCSS.8.EE.B.5

Front

What does a positive slope indicate about the relationship between two variables?

Back

As one variable increases, the other variable also increases.

Tags

CCSS.8.EE.B.5

Front

What does a negative slope indicate about the relationship between two variables?

Back

As one variable increases, the other variable decreases.

Tags

CCSS.8.EE.B.5

Front

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

Back

Choose two points from the table and use the slope formula: m = (y2 - y1) / (x2 - x1).

Tags

CCSS.8.EE.B.5

Front

If a line passes through the points (2, 3) and (4, 7), what is the slope?

Back

m = (7 - 3) / (4 - 2) = 2.

Tags

CCSS.8.EE.B.5

Front

What is the slope of a vertical line?

Back

Undefined.

Tags

CCSS.8.EE.B.5

Front

What is the slope of a line that is perfectly diagonal from the bottom left to the top right?

Back

Positive slope (m > 0).

Tags

CCSS.8.EE.B.5

Front

What is the slope of a line that is perfectly diagonal from the top left to the bottom right?

Back

Negative slope (m < 0).

Tags

CCSS.8.EE.B.5

Front

If the slope of a line is -1/2, what does this mean in terms of rise over run?

Back

For every 2 units you move to the right (run), the line goes down 1 unit (rise).

Tags

CCSS.8.EE.B.5