Review of Rational Numbers and Coordinate Grid

Front

What is a rational number?

Back

A rational number is any number that can be expressed as the quotient or fraction of two integers, where the denominator is not zero.

Front

What is the coordinate grid?

Back

The coordinate grid is a two-dimensional plane formed by the intersection of a horizontal line (x-axis) and a vertical line (y-axis), used to locate points using ordered pairs (x, y).

Front

Back

5

Front

How do you reflect a point over the x-axis?

Back

To reflect a point (x, y) over the x-axis, change the sign of the y-coordinate, resulting in (x, -y).

Front

Back

-6

Front

Back

-4

Front

If Flora made 3 withdrawals of $75 each, what is the overall change in her account?

Back

-$225

Front

What is the formula for finding the distance between two points (x1, y1) and (x2, y2) on a coordinate grid?

Back

Front

What does the x-coordinate represent in an ordered pair?

Back

The x-coordinate represents the horizontal position of a point on the coordinate grid.

Front

What does the y-coordinate represent in an ordered pair?

Back

The y-coordinate represents the vertical position of a point on the coordinate grid.