Question

When the weather is dry in the summer, Layla sometimes uses a sprinkler to water her lawn. The sprinkler uses 17 gallons of water per minute. The function V(t) represents the volume of water, in gallons, the sprinkler uses in t minutes.
What is the range of V(t)? Real or Whole

Answer 1

V(t) = 17t, with t ≥ 0 (time can't be negative).

If t can be any nonnegative real number, the range is all nonnegative real numbers: [0, ∞). (So: Real.)

If t is restricted to whole minutes (t = 0,1,2,...), the range is the set of multiples of 17: {0,17,34,51,...}.