3.5 Graph Square Root Function.notebook
November 11, 2016
arm
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1. f(x) = ­3x + 4
g(x) = x ­ 5
p
U
A. f + g
B. g ­ f
C. f g
D. g
f 2. f(x) = ­2x2 ­ x + 1
g(x) = x ­ 3
h(x) = ­4x
A. Find f o g
B. Find g o f o h
C. Find h o h o g
3. Find the inverse of the function.
y = Homework Answers
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3.5 Graph Square Root Function.notebook
November 11, 2016
Square Root Function
I. Domain
y = √x
D: x ≥ 0
The radicand of the square root function cannot be
negative.
To find the domain setup an inequality such that the
radicand is greater than or equal to 0.
Example:
y = √3x + 5
More Examples:
y = √5x - 15
f(x)= √4/5 - 2x
3.5 Graph Square Root Function.notebook
November 11, 2016
II. Graph Square Root Function
y = a√(x - h) + k
Vertex (endpoint): (h, k)
(opposite of # in parentheses, same as number +/- at end)
State the vertex of each function.
1.
2.
3.
Parent Function
x
y
3.5 Graph Square Root Function.notebook
Graph each function.
Graph each function.
November 11, 2016
3.5 Graph Square Root Function.notebook
November 11, 2016
Try these!
Graph each function.
Parent Function
x
y
3.5 Graph Square Root Function.notebook
Graph each function.
Graph each function.
November 11, 2016
3.5 Graph Square Root Function.notebook
November 11, 2016
Graph each function. State the domain.
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