Slope and Similar Triangles

Front

What does it mean for sides in similar figures?

Back

Sides in similar figures must be proportional.

Front

What is the slope of a line that goes down from left to right?

Back

Negative

Front

What is the slope of a line that goes up from left to right?

Back

Positive

Front

What is the slope of a horizontal line?

Back

Zero

Front

What is the slope of a vertical line?

Back

Undefined

Front

How do you calculate the slope of a line?

Back

Slope = (change in y) / (change in x).

Front

If a triangle has a slope of -1/2, what does that indicate about its steepness?

Back

It indicates a moderate downward slope.

Front

If a triangle has a slope of 3, what does that indicate about its steepness?

Back

It indicates a steep upward slope.

Front

What is the relationship between similar triangles and their slopes?

Back

Similar triangles have the same slope.

Front

If triangle ABC has a slope (AC) of -1/2, what does that mean?

Back

It means that for every 2 units moved horizontally, the line moves down 1 unit.