What is the range of the function y= 2e^x -1 ?

Answer:
All real numbers greater than -1
Step-by-step explanation:
We have to find the range of:
y=[tex]2e^x-1[/tex]
We know that [tex]e^x[/tex] lies in (0,∞)
Hence, [tex]2e^x[/tex] lies in (0,∞)
Hence, [tex]2e^x-1[/tex] lies in (-1,∞)
Hence, the range of y=[tex]2e^x-1[/tex] is:
All real numbers greater than -1