Question

MEDAL
What is the minimum value that the graph of y = sin x assumes?

Answer 1

This involves what's called the 'amplitude' of the graph...
Do you know what the amplitude of this equation is?

Answer 2

one??

Answer 3

So is it -1?

Answer 4

That's right :)

Answer 5

Be careful, though... the amplitude isn't always the minimum value of the graph... sometimes, you might be asked something like
"what's the minimum of the graph of y = 4+sin(x)"
In that case, the amplitude is STILL equal to 1, but the minimum value is 3, as this graph is shifted 4 units upward...

Good luck :)

Answer 6

Thanks!