a) The equation is
.
| \
x \ | \
![]() | \
\
y \ | \
| \
| \
![]() | \
\
4 \ | \
| \
0 \ | \
![]() | \
\
1 \ | \
| \
1 \ | \
![]() | \
\
0.25 \ | \
| 2 | \![]() | \
0.0625 | \
To find the y-intercept.
\
(Substitute x = 0)
Graph the ordered pairs and connect the points with a smooth curve.
\The y-intercept is 1.
\
b) Use the graph to determine the approximate value of
.
The graph represents all real values of x and their corresponding values of y for
.
So, the value of y is about 0.1 when x = 1.7. Use a calculator to confirm this value.
.
The solution of
.