Mid Unit 3 Review

Front

What is the result of reflecting a point across the line y = 1?

Back

To reflect a point (x, y) across the line y = 1, the new y-coordinate is calculated as 2 - y, while the x-coordinate remains the same.

Front

What is the definition of magnitude in geometry?

Back

Magnitude refers to the size or extent of a figure, often measured in degrees for angles.

Front

How do you represent the expression 2x² + 5y using algebra tiles?

Back

Algebra tiles for 2x² would include 2 large squares, and for 5y, it would include 5 small rectangles.

Front

What is the result of reflecting a point across the line x = 1?

Back

To reflect a point (x, y) across the line x = 1, the new x-coordinate is calculated as 2 - x, while the y-coordinate remains the same.

Front

What does the expression y² + 4 represent in algebra tiles?

Back

The expression y² + 4 can be represented with 1 large square for y² and 4 small squares for the constant.

Front

What is the formula for finding the coordinates of a reflected point across a horizontal line?

Back

For a horizontal line y = k, the reflected point (x, y) becomes (x, 2k - y).

Front

What is the formula for finding the coordinates of a reflected point across a vertical line?

Back

For a vertical line x = k, the reflected point (x, y) becomes (2k - x, y).

Front

What is the significance of the line of reflection in geometry?

Back

The line of reflection is the line across which a figure is flipped to create a mirror image.

Front

How do you determine the angle of a figure?

Back

The angle of a figure can be determined by measuring the space between two intersecting lines or segments.

Front

What is the relationship between algebra tiles and algebraic expressions?

Back

Algebra tiles provide a visual representation of algebraic expressions, helping to understand addition, subtraction, and multiplication.