The expression 5(2)' gives the number of leaves in a plant as a function of the number of weeks since it
was planted.
Exponentia
What does 2 represent in this expression?
A: the plant was planted 2 weeks ago
B: there were initially 2 leaves in the plant
C: the number of leaves is multiplied by 2 each week

Respuesta :

Answer:

C: the number of leaves is multiplied by 2 each week

Step-by-step explanation:

The right expression should be 5(2) ^ t =[tex]5(2)^{t}[/tex]

where t represent the number weeks after it planted.

If we put 0 to the time(t) we will know how many leaves initially are. The calculation will be:

[tex]5(2)^{t}[/tex]= [tex]5(2)^{0}[/tex] =5

This show that coefficient 5 determine how much the leaves initially are.

Let see how the number going for different value of t. If its 1 week after plant, the leaf will become:

[tex]5(2)^{t}[/tex]= [tex]5(2)^{1}[/tex] = 10

Then the number of leaves 2 weeks after planted will be:

[tex]5(2)^{t}[/tex]= [tex]5(2)^{2}[/tex]= 20

The number keeps double every week since coefficient 2 represents the ratio of the growth of the function and the ratio determines how much leaves multiplied each week.

So, the answer will be C.