The function f(x) = 5(1.24)x models the length (cm) of a lizard from the beginning of its life. according to the model, which represents the length of the lizard at the beginning of its life? a.1.24 b.5 c. x d. y

b. 5

Step-by-step explanation:

Given : The function ,models the length (cm) of a lizard from the beginning of its life.

Here the length of the lizard depends upon the time from the beginning, so x must be representing the time period from the beginning .

The general exponential equation is given by :-

, where A is the initial value , b is the growth factor and x is the time.

Comparing the given equation to the general equation , we get, the length of the lizard at the beginning of its life = 5 cm

Hence, 5 represents the length of the lizard at the beginning of its life .

5x+2x=49

7x=49

x=7. 35 apples