91Ó°ÊÓ

Graph each function by making a table of coordinates. If applicable, use a graphing unility to confirm your hand-drawn graph. $$h(x)=\left(\frac{1}{2}\right)^{x}$$

Solve each exponential equation by taking the logarithm on both sides. Express the solution set in terms of logarithms. Then use a calculator to obtain a decimal approximation, correct to two decimal places, for the solution. $$10^{x}=3.91$$

Evaluate each expression without using a calculator. $$\log _{4} 16$$

Use properties of logarithms to expand each logarithmic expression as much as possible. Where possible, evaluate logarithmic expressions without using a calculator. $$\log _{b}\left(x^{2} y\right)$$

Evaluate each expression without using a calculator. $$\log _{7} 49$$

Solve each exponential equation by taking the logarithm on both sides. Express the solution set in terms of logarithms. Then use a calculator to obtain a decimal approximation, correct to two decimal places, for the solution. $$10^{x}=8.07$$

Graph each function by making a table of coordinates. If applicable, use a graphing unility to confirm your hand-drawn graph. $$h(x)=\left(\frac{1}{3}\right)^{x}$$

Use properties of logarithms to expand each logarithmic expression as much as possible. Where possible, evaluate logarithmic expressions without using a calculator. $$\log _{b}\left(x y^{3}\right)$$

Evaluate each expression without using a calculator. $$\log _{2} 64$$

Use properties of logarithms to expand each logarithmic expression as much as possible. Where possible, evaluate logarithmic expressions without using a calculator. $$\log _{4}\left(\frac{\sqrt{x}}{64}\right)$$