Question Use the drawing tools to form the correct answer on the provided grid. For the sequence (1,4,7,10,...), the index start
s at 1. Graph the function f(n) on the coordinate plane, where fis a function that describes the sequence. Graph as much of the sequence as will fit on the grid. Drawing Tools Delete the Undo Reset 18 16+ 15 14 13 12 10 9
2 answers:
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Answer:
Third option: The graph moves left 18 units.
Step-by-step explanation:
Some transformations for a function f(x) are shown below:
If , the function is shifted up "k" units.
If , the function is shifted down "k" units.
If , the function is shifted left "k" units.
If , the function is shifted right "k" units.
In this case, we can observe that graph of is changed to
Since:
We can conclude that the function is shifted left 18 units to get the function
.
Assuming you know the quadratic formula:
You can fill in a, b and c in this and get:
Now, let's create a shorthand to make the writing easier:
But since one root is three times the other root (but we don't know which one), we also know that:
or
If you solve this, you get:
or
However, since q is a square root, it must be postive.
So we know that:
From this you find that
So p = 3/2
The roots are x=1/2 and x=3/2.
George sold:
and Veronica sold:
As expanding the scientific notation numbers, we see that
George sold eight hundred thousand
Veronica sold 4 million
How many time is 4 million of 8 hundred thousand?
We simply divide!
So,
Veronica's song was downloaded 5 times the numebr of that of George.
B is the right answer.