\"\"

\

The equation is \"\".

\

Solve by algebraically.

\

\"\"          (Add 36 to each side)

\

\"\"                                (Simplify)

\

\"\"                           (Divide each side by 4)

\

\"\"                                     (Divide: \"\") \ \ The solution is 9.\"\"

\

Solve by graphing.

\

The equation is \"\".

\

The related function is \"\".

\

To graph the function make a table

\

Draw a table

\ \
\ \
\ \
\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \
\

x

\ 		\

f(x) = 4x \"\"36

\ 		\

f(x)

\ 		\

(x, f(x))

\
\

9 \ \

\ 		\

= 4(9) \"\"36

\ 		\

     0 \ \

\ 		\

(9, 0)

\
\

      10

\ 		\

= 4(10) \"\"36

\ 		\

4

\ 		\

(10, 4)

\
\

\"\"

\

Use these ordered pairs to graph the equation.

\

1.      Draw a coordinate plane.

\

2.      Plot the points.

\

3.      Draw a line through these points.

\

\"The

\

The graph intersects the x-axis at 9, hence the solution is 9.\"\"

\

The root of the equation \"\"  is 9.