Help with these please

[tough hill]

1. What is the period of the sinusoidal function

2. What is the minimum of the sinusoidal function

3. What is the maximum of the sinusoidal function

4. What is the equation of the midline of the sinusoidal function

5. What is the amplitude of the sinusoidal function

[solar rune]

Maximum: The highest the sinwave reaches (the peaks)
Minimum: The lowest it reach (the valleys)
Midline: The line in between the maximum and minimum

Amplitude: Distance between midline and maximum

Period: Distance between two maximum

[tough hill]

1 = 4
2 = -4
3 = -2
4 = 7
5 = 7?

[solar rune]

Which one

[tough hill]

If all of them are right

[solar rune]

Which graph are you referring to

[tough hill]

The first picture is the first question and so on

Wait I sent them backwards, the 5th is the first and the 4th is the second and so on, sorry

[solar rune]

Oh ok

All but graph 2 look correct

[tough hill]

So answer 2 or 4

[solar rune]

Midline = (Max + Min)/2

[tough hill]

Okay

[solar rune]

Whats the max and min of graph 2

[tough hill]

-7 min 1 max

(-7+1)/2 = -3

[solar rune]

Yes

[tough hill]

So -3 is the answer

[solar rune]

Yes for midline its -3

[tough hill]

Okay thank you

[solar rune]

Or y = -3 specifically