Front

What is the definition of slope in a triangle?

Back

Slope is the ratio of the change in y-values to the change in x-values between two points on a line, often represented as \( m = \frac{\Delta y}{\Delta x} \).

Front

How do you calculate the slope between two points (x1, y1) and (x2, y2)?

Back

The slope \( m \) is calculated using the formula: \( m = \frac{y_2 - y_1}{x_2 - x_1} \).

Front

What does it mean for two triangles to be similar?

Back

Two triangles are similar if their corresponding angles are equal and their corresponding sides are in proportion.

Front

What is the relationship between the slopes of similar triangles?

Back

The slopes of corresponding sides of similar triangles are equal.

Front

What is a proportion in the context of slopes?

Back

A proportion states that two ratios are equal, often used to compare the slopes of two lines or segments.

Front

How can you determine if two slopes are equal using proportions?

Back

If \( \frac{y_2 - y_1}{x_2 - x_1} = \frac{y_4 - y_3}{x_4 - x_3} \), then the slopes are equal.

Front

What is the significance of integer coordinates in slope calculations?

Back

Integer coordinates simplify calculations and ensure that the slope can be easily determined without fractions.

Front

What does it mean for triangles to be congruent?

Back

Congruent triangles are triangles that are the same size and shape, with corresponding sides and angles equal.

Front

How do you express the slope of a line segment in terms of its endpoints?

Back

The slope of a line segment with endpoints (x1, y1) and (x2, y2) is expressed as \( m = \frac{y_2 - y_1}{x_2 - x_1} \).

Front

What is the formula for the slope of a line given two points?

Back

The formula for the slope \( m \) is: \( m = \frac{y_2 - y_1}{x_2 - x_1} \).