Answer:
see explanation
Step-by-step explanation:
The average rate of change is measured as
[tex]\frac{differenceinM}{changeintime}[/tex]
(a)
[tex]\frac{M(16)-M(8)}{16-8}[/tex]
= [tex]\frac{20-10}{8}[/tex]
= [tex]\frac{10}{8}[/tex] = 1.25 words per minute
(b)
[tex]\frac{M(24)-M(16)}{24-16}[/tex]
= [tex]\frac{25-20}{8}[/tex]
= [tex]\frac{5}{8}[/tex] = 0.625 words per minute
(c)
[tex]\frac{M(32)-M(24)}{32-24}[/tex]
[tex]\frac{25-25}{8}[/tex]
= [tex]\frac{0}{8}[/tex] = 0
