Question

Please help, thank you

Answer 1

option-B

Explanation:

Time Period:

we know that

time period is the time after which value starts repeating it's value

we can see that

time period is 120

`T=120`

Mid-line:

maximum value is 5

so, max=5

minimum value is -1

so, min=-1

`M=(max+min)/(2)`

now, we can plug values

`M=(5-1)/(2)`

`M=2`

Amplitude:

maximum value is 5

so, max=5

minimum value is -1

so, min=-1

`A=(max-min)/(2)`

now, we can plug values

`A=(5+1)/(2)`

`A=3`

so, option-B