Coordinate Plane

1
Coordinate Plane

• Sections 1.3,
• 3.3-3.4

2
Parts of Coordinate Plane
y-axis
(-5, 3)
I
II
origin
x-axis
III
IV
3
Graphing on Coordinate Plane

• Given an ordered pair, graph it.
• Given a graph, name the ordered pair.
• Identify the location of a point.
• quadrant
• axes

4
Distance and Midpoint

• Sections 1.3

5
Distance

• Finding the length of a line segment.
• On a number line
• On a coordinate plane

6
Distance

• On a number line
• formula d x2 x1
• On a coordinate plane
• formula

7
Midpoint

• Finding the location of the midpoint of a line
  segment.
• On a number line
• On a coordinate
• plane
• Remember
• A midpoint is a location of the midpoint.

8
Midpoint

• On a number line
• formula

• On a coordinate plane
• formula

9
Slope and Linear Equations
Sections 3.3-3.4
10
Slope
Slope is the steepness of a line. It is
represented by rise over run. Formula -
11
Special Slopes

• Horizontal lines
• Slope zero
• Vertical lines
• Slope undefined
• Parallel lines
• Slopes are the same.
• Intersecting lines
• Slopes are different and not perpendicular.
• Perpendicular lines
• Slopes are the negative reciprocal of each other.

12
Slope-intercept Form
y mx b
y-intercept
Plot a point on the y-axis using the y-intercept
value.
13
Application

• Parallelograms
• Trapezoids
• Circles
• Finding endpoint of a segment
• Graphing linear equations
• Parallel perpendicular slopes/lines
• x and y-intercept