Answer:
Jack = 48 years old , Lac = 12 years old
Step-by-step explanation:
Jack = 4Lacy
(Jack - 4) + (Lacy - 4) = 52
Now, substitute.
4Lacy - 4 + Lacy - 4 = 52
5Lacy = 60
Lacy = 60/5 = 12
Jack =4Lacy
=4(12)
=48
Answer:
The range interval is: (7, -1)
Step-by-step explanation:
Given the function
g(x) = -2r+5
Let us put the domain values in the interval (-1, 3)
Putting x = -1
g(x)=-2r+5
= -2(-1)+5
= 2+5
= 7
Putting x = 0
g(x)=-2r+5
= -2(0)+5
=0+5
= 5
Putting x = 1
g(x)=-2r+5
= -2(1)+5
=-2+5
= 3
Putting x = 2
g(x)=-2r+5
= -2(2)+5
=-4+5
= 1
Putting x = 3
g(x)=-2r+5
= -2(3)+5
=-6+5
= -1
Thus the range interval is: (7, -1)
In order for this to be a model of exponential growth, the b term must be greater than 1.
If the b term is between 0 and 1, then it becomes a model for exponential decay as the number will continue to get smaller and smaller for every value of x. Greater than one will continue to grow and therefore be an exponential growth model.
