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Objective & Essential Understanding
OBJECTIVE: Students will be able to graph linear equations by drawing up coordinate tables. ESSENTIAL UNDERSTANDING: Choose X. Solve for Y. Then you have a coordinate pair. Graph it!
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What is a linear equation?
Silently think about the answer & jot down your ideas What is a linear equation? A linear equation creates a line. Two examples: Y = X and Y = X + 2
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How do we graph a linear equation?
Silently think about the answer & jot down your ideas How do we graph a linear equation? Create a Coordinate Table Y = X + 2 X X+ 2 Y
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Number One: Y = X + 2 Y = X + 2 X X + 2 = Y Coordinate Pair 1 2 3 4
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Number Two: Y = X + 1 Y = X + 1 X X + 1 = Y Coordinate Pair 1 2 3 4
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Number Three: Y = X Y = X X X = Y Coordinate Pair 1 2 3 4
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Number Four: Y = X + 3 Y = X + 3 X X + 3 = Y Coordinate Pair -2 -1 1 2
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Number Five: Y = X - 1 Y = X - 1 X X -1 = Y Coordinate Pair -2 -1 1 2
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Number Six: Y = X - 3 Y = X - 3 X X - 3 = Y Coordinate Pair -2 -1 1 2
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Number Seven: Y = 2X Y = 2X X 2X = Y Coordinate Pair -2 -1 1 2
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Number Eight: Y = 3X Y = 3X X 3X = Y Coordinate Pair -2 -1 1 2
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Number Nine: Y = 2X + 1 Y = 2X + 1 X 2X + 1 = Y Coordinate Pair -2 -1
-1 1 2
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Number Ten: Y = 2X + 3 Y = 2X + 3 X 2X + 3= Y Coordinate Pair -2 -1 1
-1 1 2
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Number Eleven: Y = 2X - 1 Y = 2X - 1 X 2X -1 = Y Coordinate Pair -2 -1
-1 1 2
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Number Twelve: Y = 2X - 2 Y = 2X - 2 X 2X -2 = Y Coordinate Pair -2 -1
-1 1 2
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