Unit 4 Midterm Exam Review

Front

What is an integer?

Back

An integer is a whole number that can be positive, negative, or zero, but not a fraction or decimal.

Front

What does it mean to reflect a point across the x-axis?

Back

Reflecting a point across the x-axis means to flip the point over the x-axis, changing the sign of the y-coordinate.

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, always expressed as a positive value.

Front

What is the absolute value of |-20|?

Back

20

Front

What is the absolute value of |-6|?

Back

6

Front

How do you find the coordinates of a reflected point?

Back

To find the coordinates of a reflected point, change the sign of the coordinate that corresponds to the axis of reflection.

Front

What are the coordinates of point B reflected across the x-axis if B is (4,-3)?

Back

(4,3)

Front

What is the result of adding a positive integer and a negative integer?

Back

The result depends on the absolute values; if the positive integer is larger, the result is positive, and if the negative integer is larger, the result is negative.

Front

What is the result of -5 + 8?

Back

3

Front

What is the result of -8 + 5?

Back

-3