Question

What is the range of y = 2 sin 3x?

Answer 1

Since the range of y = sin x is [-1, 1].. Having that '2', will it affect? what is the new range?

Answer 2

let y= 3x then range of sin y will be [-1,1]... 3sin y = [-3,3]

Answer 3

@divu.mkr so the range is [-3, 3]?

Answer 4

no... that was a logic

Answer 5

Oh. Haha sorry

Answer 6

y = 2 sin 3x

2 is called 'amplitude'

Answer 7

@divu.mkr so it's [-2, 2]?? from the '2'?

Answer 8

yep

Answer 9

@ganeshie8 ya, it is the amplitude...ahh! ok! got it, i think? the range (y) from the graph...oh well, thanks XD

Answer 10

np :)
that 2 :- stretches the graph UP to 2 units, and DOWN to 2 units.