Integers and Coordinate Plane
Integers and Coordinate Plane
Study Guide
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1. The Number Line
Integers
All whole numbers both positive and negative
Opposites
Two numbers that share the same absolute value but are on the opposite sides of zero.
Ex. -5, 5
Absolute Value
A numbers distance from 0
*Because it is measuring distance, absolute value is always positive!!!
Inequality
A mathematical term for comparing two quantities using , or =
Students should be able to….
• write integers for real world situations
• graph integers and their opposites
• show a numbers absolute value
• write or solve inequalities using integers
• recognize a numbers position on the number line in relation to other numbers (Must know left and right directions!!!)
• be able to order both positive and negative numbers from least to greatest
**If a number is to the left of a number on the number line, it is less than the other
number. If it is to the right then it is greater than that number.
2. The Coordinate Plane
x-axis
the line that runs horizontally from left to right
y-axis
the line that runs vertically from top to bottom
origin
the point where the x and y-axis intersect
ordered pair
two coordinates that tell you the location of a point.
Ex. (2, 6) *first # is the x-axis, second # is the y-axis
quadrants
The four regions created by the intersection of the x- and y-axes
Students should be able to….
• graph and locate points using ordered pairs
• know which quadrant a point will lie in according to the signs of its coordinates (ex. (-7, 6) would lie in quadrant II )
• reflect points across the x- and y- axes and determine the ordered pair for a reflection according to the quadrant in which it would lie
• calculate distance between two points in a vertical or horizontal line
Students should use their notes in their math composition book as well as homework assignments and assignments in the OnCore workbook to study.
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