Can someone PLEASE tell me if I'm right?
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?
A. Domain, nonnegative values; range, values greater than −0.5
B. Domain, nonnegative values; range, values less than −0.5
C. Domain, nonnegative values; range, values greater than 1
D. Domain, nonnegative values; range, nonnegative values
Is it D?
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Hint* can the plant ever be smaller than 1? *Knowing that the domain is greater than or equal to 0 that is*
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the domain and range are all nonnegative values?
Since the domain we know is always greater than or equal to 0
The smallest 'x' we can plug in is 0...and if we do that we get y = 1
So with the SMALLEST domain value, we would have a result of 1
This means we can never have a range *within this domain* than includes a number LESS than 1
So it would look as though C is correct here