2.6 Finding slope from a graph and two points

Front

What is the formula to find the slope of a line?

Back

Front

If a line rises from left to right, what is the sign of its slope?

Back

Positive.

Front

If a line falls from left to right, what is the sign of its slope?

Back

Negative.

Front

What does a slope of zero indicate about a line?

Back

The line is horizontal.

Front

What does an undefined slope indicate about a line?

Back

The line is vertical.

Front

Calculate the slope between the points (2, 3) and (4, 7).

Back

Front

Calculate the slope between the points (1, 2) and (1, 5).

Back

The slope is undefined because the x-coordinates are the same.

Front

What is the slope of a horizontal line?

Back

The slope is 0.

Front

What is the slope of a vertical line?

Back

The slope is undefined.

Front

If the slope of a line is 1, what does this indicate about the angle of the line?

Back

The line makes a 45-degree angle with the x-axis.