Question

A food packet is dropped from a helicopter and is modeled by the function f(x) = -16x2 + 14400. The graph below shows the height f(x), in feet, of the food packet at different times x, in seconds:

Use the graph to determine the reasonable domain of f(x) based on the context.

a.) 0 ≤ x ≤ 30

b.)0 ≤ x ≤ 14400

c.) -30 ≤ x ≤ 30

d.) All real numbers

Answer 1

@jigglypuff314

Answer 2

keep in mind that you're being asked for DOMAIN, not range

Answer 3

would it be c.?

Answer 4

@jdoe0001

Answer 5

can't have negative time, so not C
can't have negative height either...

Answer 6

its a.)? lol

Answer 7

if you look at the picture, what would be the VISIBLE domain there?
the DOMAIN you can see in the picture, what do you think it's?

Answer 8

14400?

Answer 9

\( \begin{array}{llll}
f(x) = -16&{\color{red}{ x}}^2 + 14400\\
&\uparrow \\

\end{array}\bf\\domain\textit{ values "x" is taking}\)

Answer 10

i have no idea..30

Answer 11

@jigglypuff314

Answer 12

A was right I think

Answer 13

i'll go with it lol