SOLUTION: Find the domain and the y-intercept of the exponential function y = 2^(x-1). a. Domain: All real numbers y-intercept: (0, 1/2) b. Domain: All positive numbers y-

Question 43182: Find the domain and the y-intercept of the exponential function y = 2^(x-1).
a. Domain: All real numbers
y-intercept: (0, 1/2)

b. Domain: All positive numbers
y-intercept: (0, 1/2)

c. Domain: All real numbers
y-intercept: (1/2, 0)

d. Domain: All positive numbers
y-intercept: (0, 1)

e. None of the others

Found 2 solutions by stanbon, Nate:
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
Find the domain and the y-intercept of the exponential function y = 2^(x-1).
Domain: x is all Real Numbers
Range: y>0
Cheers,
stan H>
Answer by Nate(3500) (Show Source): You can put this solution on YOUR website!

There seems to be no limitations to the x-values, so Domain: {x|all real values}
Y-Intercept:

y-intercept: 0.5 .... so .... (0,0.5)
Answer: (A)

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