The graph below shows the value of Edna's stocks f(t), in dollars, after t months:What is the closest approximate average rate of change for Edna's stocks from the 12th month to the 18th month?

Question

anonymous · Answer

attachment

anonymous · Answer

5.92 dollars per month
	3.75 dollars per month
	Five dollars per month
	Nine dollars per month
These are the options

***[isuru]*** · Answer

since the equation for the graph is not given....


     the rate of change in a graph usually means the   gradient or the slope of the graph
so u have to find the slope of the graph between 12 - 18

***[isuru]*** · Answer

$$gradient = \frac{ difference \  of \  y   \ coordinates }{ difference \ of \ x \ coordinates }$$

***[isuru]*** · Answer

since they asks for the rate of change within 12 and 18 ...
       let's take the coordinates
      (12 , 37.125) , (18 , 0)
so
    gradient = 37.125 /6 = 6.18

it's close to the first answer...
 so.. i  it's  the first answer..

but if u know about calculus and differentiation...this can e found more precisely :)