Exam 1: Functions

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The accompanying figure shows the graph of y = x2 shifted to a new position. Write the equation for the new graph. The accompanying figure shows the graph of y = x2 shifted to a new position. Write the equation for the new graph.

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Find the domain and range for the indicated function. -If f(x)=x+5f ( x ) = \sqrt { x + 5 } and g(x)=8x9g ( x ) = 8 x - 9 , find f(g(x))f ( g ( x ) ) .

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Provide an appropriate response. -Graph the functions f(x)=x2f ( x ) = \frac { x } { 2 } and g(x)=3+8xg ( x ) = 3 + \frac { 8 } { x } together to identify the values of xx for which x2>3+8x\frac { x } { 2 } > 3 + \frac { 8 } { x } . Confirm your findings algebraically.

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Find the domain and range for the indicated function. -If f(x)=x,g(x)=x5f ( x ) = \sqrt { x } , g ( x ) = \frac { x } { 5 } , and h(x)=5x+10h ( x ) = 5 x + 10 , find h(g(f(x)))h ( g ( f ( x ) ) )

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Find the domain and range for the indicated function. -If f(x)=2x9f ( x ) = - 2 x - 9 and g(x)=4x27x+1g ( x ) = - 4 x ^ { 2 } - 7 x + 1 , find g(f(2))g ( f ( - 2 ) ) .

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Provide an appropriate response. -For what values of xx is x=1\lceil x \rceil = - 1 ?

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Graph the function. Determine the symmetry, if any, of the function. - y=x2/3y=-x^{2 / 3}  Graph the function. Determine the symmetry, if any, of the function. - y=-x^{2 / 3}

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Graph the function. Determine the symmetry, if any, of the function. - y=1x2y = - \frac { 1 } { x ^ { 2 } }  Graph the function. Determine the symmetry, if any, of the function. - y = - \frac { 1 } { x ^ { 2 } }

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Graph the function. - g(x)={2x0x+1,x>0g ( x ) = \left\{ \begin{array} { l l } 2 & x \leq 0 \\x + 1 , & x > 0\end{array} \right.  Graph the function. - g ( x ) = \left\{ \begin{array} { l l }  2 & x \leq 0 \\ x + 1 , & x > 0 \end{array} \right.

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Find the domain and range for the indicated function. -If f(x)=x,g(x)=x3f ( x ) = \sqrt { x } , g ( x ) = \frac { x } { 3 } , and h(x)=3x+9h ( x ) = 3 x + 9 , find f(g(h(x)))f ( g ( h ( x ) ) )

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Determine whether or not the graph is a graph of a function of x. -Determine whether or not the graph is a graph of a function of x. -

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Graph the function. Specify the intervals over which the function is increasing and the intervals where it is decreasing. - y=(x)5/2y=(-x)^{5 / 2}  Graph the function. Specify the intervals over which the function is increasing and the intervals where it is decreasing. - y=(-x)^{5 / 2}

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Find the domain and range for the indicated function. -If f(x) = 3x + 8 and g(x) = 3x - 1, find f(g(x)).

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Determine if the function is even, odd, or neither. - g(x)=5xx2+3g ( x ) = \frac { - 5 x } { x ^ { 2 } + 3 }

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Find the domain and range for the indicated function. -If f(x)=4x2+6x+8f ( x ) = 4 x ^ { 2 } + 6 x + 8 and g(x)=6x7g ( x ) = 6 x - 7 , find g(f(x))g ( f ( x ) )

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The accompanying figure shows the graph of y = -x2 shifted to a new position. Write the equation for the new graph. The accompanying figure shows the graph of y = -x<sup>2</sup> shifted to a new position. Write the equation for the new graph.

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Find the domain and graph the function. - G(t)=1t+1\mathrm { G } ( \mathrm { t } ) = \frac { 1 } { | \mathrm { t } + 1 | }  Find the domain and graph the function. - \mathrm { G } ( \mathrm { t } ) = \frac { 1 } { | \mathrm { t } + 1 | }

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Determine if the function is even, odd, or neither. - h(t)=t28h ( t ) = \sqrt { t ^ { 2 } - 8 }

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Graph the function. - F(x)={4x,x213x,x>2\mathrm { F } ( \mathrm { x } ) = \left\{ \begin{array} { l l } 4 - \mathrm { x } , & \mathrm { x } \leq 2 \\1 - 3 \mathrm { x } , & \mathrm { x } > 2 \\\end{array} \right.  Graph the function. - \mathrm { F } ( \mathrm { x } ) = \left\{ \begin{array} { l l }  4 - \mathrm { x } , & \mathrm { x } \leq 2 \\ 1 - 3 \mathrm { x } , & \mathrm { x } > 2 \\  \end{array} \right.

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Graph the function. - g(x)={1x2,x<2x,x2g ( x ) = \left\{ \begin{array} { l l } \frac { 1 } { x - 2 } , & x < 2 \\x , & x \geq 2\end{array} \right.  Graph the function. - g ( x ) = \left\{ \begin{array} { l l }  \frac { 1 } { x - 2 } , & x < 2 \\ x , & x \geq 2 \end{array} \right.

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