Answer:
"b" option is correct , its not proportion
Step-by-step explanation:
Because for proportion it L.H.S=R.H.S
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-4x + 9y = 9...............(1)
x - 3y = -6 Multiply through by 3:-
3x - 9y = -18..............(2)
adding equations (1) and (3):-
-x = -9
x = 9
Substitute for x in equation (1)
-4(9) + 9y = 9
-36 + 9y = 9
9y = 45
y = 5
Answer is x = 9 and y = 5
The general form of the function is
where
A = amplitude
T = period
φ = phase shift.
Given:
A = 3
T = 4π
φ = -π
Answer: