Drawing Graphs using tables

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Presentation transcript:

Drawing Graphs using tables WALT Draw the graphs of given equations WILF To be able to calculate x and y values for an equation and then plot it on a graph using a table – Grade E/D Key Words equation axis x value y value coefficient gradient intercept constant

What can you tell me about this equation? x+y = 10 On your whiteboard, write down 5 sets of co-ordinates which satisfy the equation (1 min) x+y = 10

y = 3x -2

Drawing Graphs using tables WALT Draw the graphs of given equations WILF To be able to calculate x and y values for an equation and then plot it on a graph – Grade E/D using a table

y = 3x -2 x 1 2 3

y = 3x -2 x 1 2 3 3x 3 6 9

3x -2 x 1 2 3 3x 3 6 9 Remember -2 is constant -2 -2 -2 -2 -2

y = 3x -2 x 1 2 3 3x 3 6 9 Remember -2 is constant -2 -2 -2 -2 -2 y=3x-2 -2 1 4 7

y = 4x +3 x -1 1 2 3

y = 4x +3 x -1 1 2 3 4x -4 4 8 12

4x +3 x -1 1 2 3 4x -4 3 6 9 Remember +3 is constant +3 +3 +3 +3 +3 +3

y = 4x +3 x -1 1 2 3 4x -4 3 6 9 Remember +3 is constant +3 +3 +3 +3 +3 +3 y=4x+3 -1 3 6 9 12

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