Graphs Flashcards

(9 cards)

1
Q

What does mod bars around x mean about the shape of a graph

A

V shape

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2
Q

What do we do when it’s |f(x)|

A

Reflect negative y values in x axis

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3
Q

What do we do when it’s f(|x|)

A

Reflect the x positive values in the y axis

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4
Q

If 40 is a rootof a quadratic and we know a coordinate, how do we model it

A

y=Ax(x-40)
Plug in and solve for A

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5
Q

Sketch the graph transformation table

A
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6
Q

What’s the difference between f⁻¹(x) vs f⁻¹

A

For f⁻¹(x) just write the inverse function
For F⁻¹, write the inverse function AND DOMAIN (which is the range of the original function)

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7
Q

If we have 2|x+4| where does the minus go

A

2|x+4|=
2(x+4)
and
-2(x+4)

Doesn’t go between the 2 and bracket

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8
Q

When solving a function equal to its inverse, what do we do

A

Set either the inverse function OR the original function = x

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9
Q

How do we prove f(x) is odd

A
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