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Mathematics
Graphs of Equations and Functions
Function Graphs
Sketching Polynomials
Sketching Polynomials
What You Need to Know
Recognise and sketch graphs of simple linear and quadratic functions.
Recognise and sketch graphs of
y
=
x
3
y = x^3
y
=
x
3
and
y
=
1
x
y = \frac{1}{x}
y
=
x
1
.
Identify intercepts and turning points of quadratic functions using symmetry and sketch the graphs.
Find roots of quadratic equations algebraically.
Sketch quadratic functions by identifying turning points via completing the square.
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