8. (18 pts) Let f(x) = ex-1 +4.
Answers can be stated without additional work/explanation.
(a) Which describes how the graph of f can be obtained from the graph of y = e' ? Choice.
A.
Shift the graph of y = e' to the left by 1 unit and up by 4 units.
B.
Shift the graph of y = e to the right by 1 unit and up by 4 units.
C.
D.
Reflect the graph of y = e" across the x-axis and shift up by 4 units.
Reflect the graph of y = e" across the y-axis and shift up by 4 units.
(b) What is the domain of f?
(c) What is the range of f?
(d) What is the horizontal asymptote?
(e) What is the y-intercept? State the approximation to 2 decimal places (Le, the nearest hundreds)
(f) Which is the graph of f?
GRAPH A
GRAPH B
GRAPH C
GRAPH D