Question

Pooja's plant began sprouting
\[2\] days before Pooja bought it, and she had it for
\[98\] days until it died. At its tallest, the plant was
\[30\] centimeters tall.
\[h(t)\] models the height of Pooja's plant (in centimeters),
\[t\] days after she bought it.
Which number type is more appropriate for the domain of
\[h\]?

Answer 1

Real numbers — specifically all real t with -2 ≤ t ≤ 98. Time can be measured continuously (not just whole days), and the plant existed from 2 days before purchase (t = −2) until it died at t = 98.