Which model represents the factors of x2 + 9x + 8?
+
+
+x
+
+
x
+x?
+x+X X + + +X
+
+
+X
+
+
-
+
+
+
+X
+
-
+
+X
+
+
+
-
1
-
+
+x
+
+
+
+x²
+X
+X +X +X +X
+
+
+
+
+
+
+
+
+x
+
+
+

the answer is D

Step-by-step explanation:

C

Step-by-step explanation:

I got it on the test and it worked

Part A: Geometric Sequence

Part B:

Part C: a₈ = 512

Step-by-step explanation:

When we find the common ratio between the y-values (x-values are n inputs), we should see that we get r = 2. That means we have a geometric sequence.

Because we have a geometric sequence, our recursive formula is: . Simply plug in our known variables:

Now we need to find what y is when x = 8, so (I used explicit formula):

a₈ = 512