Unit 7: Rational Exploration: Numbers and Opposites Review

Front

What is the difference when subtracting a negative number?

Back

Subtracting a negative number is the same as adding its positive counterpart. For example, 1 - (-10) = 1 + 10 = 11.

Front

What is the absolute value of a number?

Back

The absolute value of a number is its distance from zero on the number line, regardless of direction. For example, |-4| = 4.

Front

What happens to the coordinates of a point when it is reflected over the x-axis?

Back

When a point (x, y) is reflected over the x-axis, its y-coordinate changes sign, resulting in the point (x, -y).

Front

Which quadrant contains points with positive x and negative y coordinates?

Back

Quadrant IV contains points with positive x and negative y coordinates.

Front

How do you order integers from greatest to least?

Back

To order integers from greatest to least, compare their values and arrange them in descending order. For example, 8, 4, 0, -3, -5.

Front

What is the result of 1 - (-10)?

Back

The result is 11.

Front

What is the absolute value of |-4|?

Back

The absolute value is 4.

Front

What are the coordinates of a rectangle after reflection over the x-axis if the original coordinates are (-3, 0), (-1, 0), (-1, 1), (-3, 1)?

Back

The new coordinates after reflection are (-3, 0), (-1, 0), (-1, -1), (-3, -1).

Front

Which point is located in Quadrant IV?

Back

The point (3, -1) is in Quadrant IV.

Front

How do you find the absolute value of a number?

Back

To find the absolute value, remove any negative sign. For example, |-5| = 5.