Doman and range from graph

1. Discrete vs Continuous
"Jump around" "Smoooooooth"
http://mathdemos.gcsu.edu/mathdemos/domainrange/domainrange.html
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2. Day 3 ­ Finding domain from a graph, restricted domains
When your curve is continuous, there is a range of values that
will be included in the domain and range. Therefore, they
should be expressed as an INEQUALITY.
Domain: Input or x values Range: Output or y values
highest
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igh
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st
r
st
the
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lowest
far
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3. Find the domain and range of the following:
1. 2.
You try...
3. 4.
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4. 7. 8.
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5. 15. Sketch a function with a domain of ­ 3 ≤ x ≤ 5
and a range of ­ 4 ≤ y ≤ 8
16. Sketch a function with a domain of {1, 2, 3}
and a range of {­4, ­5, ­6}
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6. Examples with restricted domains...
1: f(x) = 2x + 5 2: g(x) = 1 + 4x ­ x2
Domain: {x | ­3 ≤ x ≤ 6} Domain: {x | 0 ≤ x ≤ 4}
Find the range. Find the range.
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