Unit 4 Review 8.4A & 8.4C

Front

What are the coordinates of point R?

Back

(0,1)

Front

What is the ordered pair for point C?

Back

(3,4)

Front

What is the definition of similar triangles?

Back

Triangles that have the same shape but may differ in size; their corresponding angles are equal and their corresponding sides are in proportion.

Front

How do you find the slope of a line given two points?

Back

Use the formula: slope (m) = (y2 - y1) / (x2 - x1).

Front

What is the slope of the line segment between points (0,1) and (-4,4)?

Back

The slope is -3/4.

Front

What is the formula for the slope of a line segment between two points (x1, y1) and (x2, y2)?

Back

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

Front

What does it mean for two lines to be parallel in terms of slope?

Back

Two lines are parallel if they have the same slope.

Front

What is the relationship between the slopes of similar triangles?

Back

The slopes of corresponding sides of similar triangles are equal.

Front

How can you express the slope of a line segment using coordinates?

Back

The slope can be expressed as a ratio of the change in y-coordinates to the change in x-coordinates.

Front

What is the significance of the ordered pair in a coordinate plane?

Back

An ordered pair (x,y) represents a specific point on the coordinate plane, where x is the horizontal position and y is the vertical position.