For the sequence 2, 6, 18, 54, ..., the explicit formula is: an = a1 ! rn"1 = 2 ! 3n"1 , and the recursive formula is: a1 = 2, an+1 = an ! 3 . In each case, successively replacing n by 1, 2, 3, ... will yield the terms of the sequence. See the examples below.
Answer:
From the looks of the graph, it looks like the answer will be Letter C. (The last graph).
Step-by-step explanation:
Graph the parabola using the direction, vertex, focus, and axis of symmetry.
Direction: Opens Down
Vertex: (
−
3
/4
, 41
/8
)
Focus: (
−
3
/4
, 5
)
Axis of Symmetry: x
=
−
3
/4
Directrix: y
=
21
/4
x y
−
3 −
5
−
2 2
−
3 4
41 8
0 4
1 −
1
The first answer is the correct one
Given:
The complex number is:

To find:
The argument of the given complex number.
Solution:
If a complex number is
, then the argument of the complex number is:

We have,

Here,
and
. So, the argument of the given complex number is:




Therefore, the argument of the given complex number is
.
A place I go to graph is go to desmos. It works well for this. All you have to do is snip the picture of your graph