Exam 2: Functions

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Graph the function. - G(x)={x+5,x<05,x0G ( x ) = \left\{ \begin{array} { l l } | x | + 5 , & x < 0 \\5 , & x \geq 0\end{array} \right.  Graph the function. - G ( x ) = \left\{ \begin{array} { l l }  | x | + 5 , & x < 0 \\ 5 , & x \geq 0 \end{array} \right.

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Find the formula for the function. -Express the volume of a sphere as a function of its radius r.

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The problem tells how many units and in what direction the graph of the given equation is to be shifted. Give an equation for the shifted graph. Then sketch the original graph with a dashed line and the shifted graph with a solid line. - x2+y2=9x^{2}+y^{2}=9  Jp 3, right 6\text { Jp } 3 \text {, right } 6  The problem tells how many units and in what direction the graph of the given equation is to be shifted. Give an equation for the shifted graph. Then sketch the original graph with a dashed line and the shifted graph with a solid line. - x^{2}+y^{2}=9      \text { Jp } 3 \text {, right } 6

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Use a graph to find an approximate solution to the equation. Round to the nearest thousandth. - 165(1.41)x/4=330165 ( 1.41 ) ^ { x / 4 } = 330

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Find the domain and range for the indicated function. - f(x)=x+7,g(x)=x7f ( x ) = \sqrt { x + 7 } , \quad g ( x ) = \sqrt { x - 7 } fgf \cdot g

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Solve the problem. -The accompanying figure shows the graph of y=x2y = - x ^ { 2 } shifted to a new position. Write the equation for the new graph.  Solve the problem. -The accompanying figure shows the graph of  y = - x ^ { 2 }  shifted to a new position. Write the equation for the new graph.

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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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Assume that f is an even function, g is an odd function, and both f and g are defined on the entire real line. State whether the combination of functions (where defined) is even or odd. -g/f

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Is the function graphed below one-to-one? -Is the function graphed below one-to-one? -

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Find a formula for the function graphed. -Find a formula for the function graphed. -

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Find the exact function value. - sin1(32)\sin ^ { - 1 } \left( \frac { \sqrt { 3 } } { 2 } \right)

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Determine an appropriate viewing window for the given function and use it to display its graph. - f(x)=x13f(x)=\sqrt[3]{x-1}  Determine an appropriate viewing window for the given function and use it to display its graph. - f(x)=\sqrt[3]{x-1}

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Solve for t or y, as appropriate. - lny=4x+5\ln y = 4 x + 5

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Graph the function. Determine the symmetry, if any, of the function. - y=xy=\sqrt{-x}  Graph the function. Determine the symmetry, if any, of the function. - y=\sqrt{-x}

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Find the inverse of the function. - f(x)=x+3,x3f ( x ) = \sqrt { x + 3 } , x \geq - 3

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Express the given quantity in terms of sin x or cos x. - cos(4π+x)\cos ( 4 \pi + 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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Use the laws of exponents to simplify. Do not use negative exponents in your answer. - 8153395\frac { 81 ^ { 5 } \cdot 3 ^ { - 3 } } { 9 ^ { 5 } }

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Solve the problem. -The population of a small country increases according to the functio B=2,400,000e0.05tB = 2,400,000 e ^ { 0.05 } t t, where t is measured in years. How many people will the country have after 3 years?

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Express as a single logarithm and, if possible, simplify. - 12ln(49t16)ln7\frac { 1 } { 2 } \ln \left( 49 t ^ { 16 } \right) - \ln 7

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