Gregor is documenting the height of pea plants each week. He has determined the function to be f(x) = 2x + 1, where x represents time and f(x) represents the height of the plant. Which of the following options describes the restrictions to the domain (x) and range f(x) correctly?

Domain, nonnegative values; range, values greater than −0.5
Domain, nonnegative values; range, values less than −0.5
Domain, nonnegative values; range, values less than or equal to 1
Domain, nonnegative values; range, values greater than or equal to 1

Question

Gregor is documenting the height of pea plants each week. He has determined the function to be f(x) = 2x + 1, where x represents time and f(x) represents the height of the plant. Which of the following options describes the restrictions to the domain (x) and range f(x) correctly?

 Domain, nonnegative values; range, values greater than −0.5
 Domain, nonnegative values; range, values less than −0.5
 Domain, nonnegative values; range, values less than or equal to 1
 Domain, nonnegative values; range, values greater than or equal to 1