Quadratic Graphs.

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Presentation transcript:

Quadratic Graphs

What does this quadratic graph look like? y = x2

What does this quadratic graph look like? y = - x2 ?

What does this quadratic graph look like? y = x2 + 1 ?

What does this quadratic graph look like? y = x2 – 3 ?

What does this quadratic graph look like? y = x2 + 2x + 1 ? x -3 -2 -1 1 2 3 y

What does this quadratic graph look like? y = x2 + 5x + 6 ? x -3 -2 -1 1 2 3 y

Which of these are ‘n’ shaped and which are ‘u’ shaped? y = x2 + 3x + 6 y = x2 + 3x - 6 y = x2 - 3x - 6 y = - x2 + 3x - 6 y = - x2 +3x + 6 y = - x2 - 3x + 6 y = x2 - 3x + 6 y = - x2 - 3x - 6