f$($x$)=$x$$between x $=1$ and x $=9$

Find the average rate of change for the given function$$

Question $12$Answer

a$.$

$1/4$ or $0\mathrm{.}25$

b$.$

$3/5$ or $0\mathrm{.}6$

c$.$

$9/12$ or $0\mathrm{.}75$

d$.$

$7/21$ or $0\mathrm{.}3$

e$.$

$1/2$ or $0\mathrm{.}5$