Practice Objectives

- Demonstrate the ability to check a proposed ordered pair solution
- Demonstrate the ability to complete an ordered pair, given one component
- Demonstrate an understanding of the rectangular coordinate plane
- Demonstrate the ability to find the coordinates (x,y) of an ordered pair
- Demonstrate the ability to determine the quadrant of an ordered pair

## Practice Linear Equations in Two Variables

Instructions:

Answer 7/10 questions correctly to pass.

Problem:

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Determine if an Ordered Pair is a Solution:

- An ordered pair is of the form: (x, y)
- Plug in the first component (leftmost value) for x in the equation
- Plug in the second component (rightmost value) for y in the equation
- Evaluate and determine if the equation results in a true statement
- Left and right sides must be the same value

Complete an Ordered Pair:

- Plug in for the known variable
- Solve for the unknown variable
- Check the ordered pair, determine if the equation results in a true statement
- Left and right sides must be the same value

Finding the Coordinates of an Ordered Pair:

- The x-axis is the horizontal axis
- The y-axis is the vertical axis
- An ordered pair (point) has coordinates (x, y)
- The x-coordinate is the location on the x-axis
- The y-coordinate is the location on the y-axis

Determine the Quadrant of an Ordered Pair:

- Quadrant I: (+, +)
- x-values are positive
- y-values are positive

- Quadrant II: (-, +)
- x-values are negative
- y-values are positive

- Quadrant III: (-, -)
- x-values are negative
- y-values are negative

- Quadrant IV: (+, -)
- x-values are positive
- y-values are negative

- Points on the axes are not in any quadrant

Step-by-Step:

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$$(x, y)$$

$$x=$$

$$y=$$

Quadrant:

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