Question 37
TrigonometryWhich of the following is a sketch of y = 3 sin x?
- A.Graph A
- B.Graph B
- C.Graph C
- D.Graph D
Show the answer and explanation
Answer: B (Graph B)
Explanation
y = 3 sin x passes through the origin, rises to 3 at x = π/2, returns to 0 at π and is negative between −π and 0. Only graph B does this.