##### Notes

This printable supports Common Core Mathematics Standard HSF-IF.A.1

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## Function Notation

1.
$f(x)=2x+5$ is equivalent to
1. $y=2x+5$
2. $x=2x+5$
3. This is not a function
4. $8=2x+5$
2.
$y=3x-2$ expressed as a function is
1. $x=3x-2$
2. $y=3x-2$
3. $f(x)=3x-2$
4. This is not a function
3.
$f(x)=3x+4y-6$ can also be expressed as
1. $y(x) = 3x+4y-6$
2. $y=3x+4y-6$
3. $x=3x+4y-6$
4. This is not a function
4.
$f(x)=15y+8$ can also be expressed as
1. This is not a function
2. $x=15y+8$
3. $15y=8$
4. $f(y)=15x+8$
5.
$t=23r-4r+6$ expressed as a function is
1. $f(t)=23r-4r+6$
2. $f(r)=19r+6$
3. $f(t)=19r+6$
4. This is not a function
6.
$f(p)=6p-3$ is equivalent to
1. $f(x)=6p-3$
2. $p=6p-3$
3. $t=6p-3$
4. This is not a function
7.
$y=1/2x^2+2$ expressed as a function is
1. $f(x)=1/2x^2+2$
2. $f(y)=1/2x^2+2$
3. $x=1/2x^2+2$
4. This is not a function
8.
$8=x^2+y^2$ expressed as y as a function of x is
1. $f(x)=x^2+y^2$
2. This is not a function
3. $f(y)=x^2+y^2$
4. $f(x,y)=x^2+y^2$
9.
$y=-x$ expressed as a function is
1. $f(x)=-x$
2. $f(y)=-x$
3. This is not a function
4. $f(-x)=x$
10.
$f(y)=-x^2+2$ is equivalent to
1. $y=-x^2+2$
2. This is not a function
3. $x=-x^2+2$
4. $y=x^2+2$
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