This is urgent! I am willing to give lots of points for this! Please help! thanks.

Step-by-step explanation:

To find the equation of a sinusoidal curve, you need to know the period and the amplitude. The amplitude can clearly be seen to be at 3, while the period is just . Since there isn't any vertical or horizontal shift, the equation is simply:

Hope this helps!

2 over 5

step-by-step explanation:

the 2: 3 ratio is the length of the ac segment to the cb segment total length. this implies that the ratio between segment ac length and segment ab length is 2: 5. point c is 2/5 from a to b, so the required fraction is 2/5.

i think is 3 and 6. this took me 10 min to think.hope to and hope that my answer is brainliest.(follow me )