Question

Determine the equation of the midline of the following graph.

Answer 1

y = 4 sin x

Explanation:

Finding the necessary values :

• Amplitude (A) = 4 - (-4) / 2 = 8/2 = 4
• Time Period (T) = π/2

Equation :

• y = 4 sin (x + π/2 - π/2)
• y = 4 sin x