Question

Function f is defined by f(x) = 5x
.

Part A

Select the domain of the function.
A. x > 0
B. x > 1
C. x > 5
D. all real numbers
Part B

Select the range of the function.
A. y > 0
B. y ≥ 0
C. y > 5
D. y ≥ 5
Part C

Select the asymptote of the function.
A. x = 0
B. x = 1
C. y = 0
D. y = 5
Part D

Select the y-intercept of the function.
A. 0
B. 1
C. 5
D. 6

Answer 1

It appears f(x) = 5^x. Answers:

Part A: D (all real numbers) — exponential is defined for every real x.
Part B: A (y > 0) — 5^x > 0 for all x.
Part C: C (y = 0) — horizontal asymptote is y = 0.
Part D: B (1) — y-intercept f(0) = 5^0 = 1.