The equation is
.
Solve by graphing.
\
(Multiply each side by 3)
(Multiply:
)
(Multiply:
)
(Subtract x from each side)
(Simplify)
(Add 33 to each side)
(Simplify)
(Divide each side by 8)
(Divide:
)
Solve by graphing.
\The equation is
.
The related function is
.
To graph the function make a table
\Draw a table
\| \
x \ | \
\
f(x) = x | \
\
f(x) \ | \
\
(x, f(x)) \ | \
| \
0.5 \ | \
\
= 0.5 | \
\
| \
\
(0.5, | \
| \
0.8 \ | \
\
= 0.8 | \
\
| \
\
(0.8, | \
Use these ordered pairs to graph the equation.
\1. Draw a coordinate plane.
\2. Plot the points.
\3. Draw a line through these points.
\=x-1_1.gif\")
The graphintersects the x-axis at 1.1, hence the solution is 1.1.
Check:-
\To check the solution substitute
in equation
.
(Substitute
)
(Simplify)
(Subtract:
)
The root of the equation
is 1.1.