Question

Below is the graph of a trigonometric function. It has a minimum point at (-2,-5.2) and an amplitude of 1.1. What is the midline equation of the function?
Y=

Answer 1

$y_{minimum} = - 5.2 \\ y_{maximum} = - 5.2 + 1.1 \\ y_{maximum} = - 4.1$

$midline = \frac{y_{maximum} + y_{minimum} }{2} \\ midline = \frac{ - 5.2 - 4.1}{2} = \frac{ - 9.3}{2} = - 4.65$

$midline \: \: \: \: y = - 4.65$