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Transcript 
January 27, 2017
Warm up:
Graph
1) y = 2x2
2) y = x2 - 4x
Vertex, line of symmetry, min/max
value, domain and range
January 27, 2017
HW Solutions
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January 27, 2017
The length that a spring stretches varies
directly as the mass of the object attached to it.
If a 50g weight is attached to the end of a
spring, it stretches to a length of 4cm. How
long would the spring stretch to if a 70g weight
was attached to the end?
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January 27, 2017
January 27, 2017
Does the following relationship represent a
function?
D
7
R
4
8
9
10
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January 27, 2017
Is the following function linear or nonlinear?
x
5
6
7
8
y
12
14
16
18
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January 27, 2017
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January 27, 2017
January 27, 2017
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January 27, 2017
Graph the following functions. Check your
answers in your graphing calculators.
1) f(x) = x2 - 4x
2) y = -x2 - 5x + 6
3) Z(x) = 4 - (1/3)x2
4) a(x) = x2 - 6x + 8
January 27, 2017
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