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14 Cards in this Set
- Front
- Back
- 3rd side (hint)
A functions is... |
A set of ordered pairs (x, y) such that fir each value of x there is a corresponding single value of y. |
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The domain of functions is the ___ value |
X |
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The range of a function is the ____ value |
Y |
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Equation to find the discriminate is... |
B^2-4ac |
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The discriminate determines... |
The nature if the roots. |
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If b^2-4ac <o the graph will... |
Not touch the x axis. There are no real roots. |
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If b^2-4ac = 0 the graph will... |
You b the x axis at the vertex. There are only one root or two equal roots. |
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If b^2-4ac >0 the graph will |
Touch the x axis at two points. There are two distinct real roots. |
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The vertex for a point if a >0 and the y-ci-doezinats if the vertex is k. |
Minimum |
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The vertex for a point if a <0 and the y-ci-doezinats if the vertex is k. |
Maximum. |
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General form for a quadratic. |
Y= ax^2+bx+c |
^2 |
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How do you find y-intercepts. |
Set x = 0 |
Y = a (0)^3 +b (0)+c Y = c |
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How do you find the x intercepts |
Set y = 0 Either by factoring or quadratic formula |
Ax^2+bx+c |
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What is the quadratic formula? |
(-b+-2 root b^2-4ac)/ (2a) |
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