91Ó°ÊÓ

Evaluate each expression without using a calculator. $$ \left(\frac{3}{4}\right)^{-1} $$

For each function: I. Evaluate the given expression. b. Find the domain of the function. \- Find the range. [Hint: Use a graphing calculator. You may have to ignore some false lines on the graph. Graphing in "dot mode" will also eliminate false lines.] $$ f(x)=\frac{16}{x(x-4)} ; \text { find } f(-4) $$

Find the slope (if it is defined) of the line determined by each pair of points. \((-4,0)\) and \((2,2)\)

Evaluate each expression without using a calculator. $$ 4^{-2} \cdot 2^{-1} $$

For each function: I. Evaluate the given expression. b. Find the domain of the function. \- Find the range. [Hint: Use a graphing calculator. You may have to ignore some false lines on the graph. Graphing in "dot mode" will also eliminate false lines.] $$ g(x)=8^{x} ; \text { find } g\left(-\frac{1}{3}\right) $$

Find the slope (if it is defined) of the line determined by each pair of points. \((-1,4)\) and \((5,1)\)

Evaluate each expression without using a calculator. $$ 3^{-2} \cdot 9^{-1} $$

Evaluate each expression without using a calculator. $$ \left(\frac{3}{2}\right)^{-3} $$

11-22. For each function: a. Evaluate the given expression. b. Find the domain of the function. c. Find the range. [Hint: Use a graphing calculator.] $$ f(x)=\sqrt{x-1} ; \text { find } f(10) $$

Find the slope (if it is defined) of the line determined by each pair of points. \((0,-1)\) and \((4,-1)\)