Question

Please tell me what the correct answer for question 4 is

Answer 1

(a)

At traveled distance zero at time 28 min. the graph is represent distance of recreation center at any time "t"

(b)

Y-intercept of the graph is 9.

(c)

Rate of change is:

$\text{ rate of change=}\frac{y_2-y_1}{x_2-x_1}$

Where,

$\begin{gathered} (x_1,y_1)=\text{ First point} \\ (x_2,y_2)=\text{ second point} \end{gathered}$$\begin{gathered} (0,9)=\text{ first point} \\ (28,0)=\text{ second point} \end{gathered}$$\begin{gathered} \text{ rate of change=}\frac{0-9}{28-0} \\ =\frac{-9}{28} \\ =-0.3214 \end{gathered}$

(d)

Rate of change represent : rate of change represent is change in y -axis in per unit change in x- axis

( e)

f(16) that mean at x=16 then y is 4.