The graph of a sinusoidal function has a maximum point at (0,10)(0,10)left parenthesis, 0, comma, 10, right parenthesis and then intersects its midline at \left(\dfrac{\pi}{4},4\right)(4π,4)left parenthesis, start fraction, pi, divided by, 4, end fraction, comma, 4, right parenthesis.
Write the formula of
