GP - Lesson: Review of Graphing (RC)

Review of Graphing

Objective: Identify and graph points in the coordinate plane.

Coordinate Plane

Graphing a Point

Always written in the form (x,y)

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The x-value tells us to move left or right

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The y-value tells us to move up or down

​Examples:

​Graph (4,6)
Graph (-2,6)

Graphing

Graph: (-7,3), (4,-5) and (10,8)

Multiple Choice

What are the coordinates of Point P?

• (-3,2)

• (2,-3)

Multiple Choice

If x is a positive number and y is a negative number, where is the point (x, y) located?

• Quadrant I

• Quadrant II

• Quadrant III

• Quadrant IV

Identifying the Intercepts

​What is the x-intercept?

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What is the y-intercept?​

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Multiple Choice

What is the y-intercept of the line shown?

• (0,-4)

• (-4,0)

• (0,1)

• (1,0)

Multiple Choice

What is the x-intercept of the line shown?

• (0,-4)

• (-4,0)

• (0,1)

• (1,0)

Identifying Basic Slopes

Slope: the 'steepness' of a line.

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There are FOUR basic categories for SLOPES

POSITIVE SLOPE

NEGATIVE SLOPE

SLOPE OF ZERO

UNDEFINED SLOPE

Draw

Sketch an example of a line with each kind of slope.

Multiple Select

Which graph(s) have an UNDEFINED slope?

Multiple Select

Which graph(s) have a NEGATIVE slope?

Multiple Select

Which graph(s) have a slope of ZERO?

Multiple Select

Which graph(s) have a POSITIVE slope?