It's f(x) = sin2x
Because when you multiply x by any number greater than 1, the graph will shrink.
Try but pi/2 in the equation you will get sin(pi) which is 0. And that satisfies the gragh.
<h3>
Answer: 3x</h3>
Explanation:
When x is zero or larger, then |x| = x.
An example: |9| = 9
This applies to |3x| as well, so |3x| = 3x when 
Ф is the angle of elevation to the topo of the building from G.
length of leg adyacent to angle Ф=40m
length of leg opposite to angle Ф=15 m
tan Ф=leg opposite / leg adyacent=15/40=0.375
Ф=arctan 0.375=20.56º
The angle of elevation to the top of the building from G is 20.56º.
I can be wrong but I tried really hard!
Slope intercept form: y = mx + b
You need to separate x and y
2x + 3y = 1,470
Subtract 2x from both sides
3y = -2x + 1470
Divide by 3
Solution: y = -2/3x + 490
