\"\"

\

The equation is \"\".

\

Solve by graphing.

\

Apply addition property of equality: Add 4x to each side.

\

\"\"

\

\"\"                     (Simplify)

\

 

\

Apply subtraction property of equality: Subtract 7 from each side.

\

\"\"

\

\"\"                           (Simplify)\"\"

\

Solve by graphing.

\

The equation is \"\".

\

The related function is \"\".

\

To graph the function make a table

\

Draw a table

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

x

\ 		\

f(x) = x \"\"1

\ 		\

f(x)

\ 		\

(x, f(x))

\
\

1

\ 		\

= 1 \"\"1

\ 		\

     0

\ 		\

(1, 0)

\
\

      2

\ 		\

= 2 \"\"1

\ 		\

1

\ 		\

(2, 1)

\
\

\"\"

\

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  graphintersects the x-axis at 1, hence the solution is 1.\"\"

\

Check:-

\

To check the solution, substitute x = 1 in equation \"\".

\

\"\"

\

\"\"                     (Multiply: \"\")

\

\"\"                                (Subtract: \"\")

\

The solution is true.\"\"

\

The root of the equation \"\" is 1.