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13 Cards in this Set
- Front
- Back
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what is the name for ax2?
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quadratic term
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what is the name for bx
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linear term
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what is the name for c?
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constant term
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a parabola is
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the graph of a quadratic function
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the axis of symmetry is
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the line that divides a parabola into two equal halves
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the vertex of a parabola is
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a point where the parabola intersects the axis of symmetry
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The graph of y=ax2 + bx + c is a parabola when a
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does not equal zero
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when a > 0 the parabola opens ____
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UP
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when a < 0 the parabola opens
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Down
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what is the axis of symmetry line?
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x= -b/2a
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the y intercept is
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0, c
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What are the four steps of graphing a quadratic function in the form of ax2 + c
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- Graph the vertex, which is the y-intercept
- make a table of values on one side of the axis of symmetry - graph the corresponding points on the other side of the axis of symmetry - Sketch the curve |
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What are the five steps of graphing a function in the form of y= ax2 + bx+ c
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- Find and graph the axis of symmetry
- Find and graph the vertex - Find and graph the y intercept and its reflection - evaluate the functino for another value of x - sketch the curve |
