Graphs

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8 Terms

1
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Equation for straight line (3)

y = mx + c

m is the gradient (y change / x change)

c is the y intercept

either can be negative

2
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Quadratic Formula

x = (-b ± √(b² - 4ac)) / 2a

3
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Quadratic graphs

Graphs with an x² term

<p>Graphs with an x² term</p>
4
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Equation for a quadratic line

0 = ax² + bx + c

5
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Cubic graphs

Graphs with an x³ term

<p>Graphs with an x³ term</p>
6
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Equation for a cubic graph

ax3 + bx² + cx + d

7
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Reciprocal graphs

y = n/x

It has two lines in differnet quadrants

The two lines never meet

<p>y = n/x</p><p>It has two lines in differnet quadrants</p><p>The two lines never meet</p>
8
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Turning point

When in the form 0 = (x+a)2 + b turning point = (-a,b)