Answer:
Step-by-step explanation:
The given equation is 
We substitute the ordered pairs to see which ones satisfies the equation.
For (-1,-8), we put x=-1 and y=-8 to get:
This is not true.
For 
we put x=-1 and 
to get
This is true
For (3,3/2) we have 2(3)+6(3/2)=15
This implies 6+9=15
15=15
This is also True
For (-5,25/6), we have 2(-5)+6(25/6)=-10+25=15
This is also true.
Answer:
a(n) = 7*2^(n - 1)
Step-by-step explanation:
The first term of the given geometric sequence, 7, 14, 28, 56, 112, ... , is 7, and the common ratio is 2. Each new term is twice the previous term.
Thus the general formula for the geometric sequence becomes
a(n) = 7*2^(n - 1).
As a check, let's see whether this formula correctly predicts the fourth term (56): Here n = 4, and so a(4) = 7*2^(4 - 1) = 7*2^3 = 7*8 = 56. Yes.
Answer: C
Step-by-step explanation:
In this problem, you will need to know the different properties of the equation. Which part tells you if this graph is negative or positive? and more.
First, we notice an x as the exponent. This tells us that this is an exponential equation. Therefore, we can eliminate B and D.
Next, how do we know if the equation is growth or decay?
The 3 and 1.5 are both positive. This tells us that this is equation is exponential growth.
You can always graph the equation to make sure you are correct.
