H is a trigonometric function of the form h(x) = a sin(bx + c) + d. Below is the graph h(c). The function intersects its midline at (-4pi, 2.5) and has a maximum point at (-5pi/2,6)
Find a formula for h(c). Give an exact expression.

Kayla made observations about the sellin price of a new brand of coffee that sold in the three different sized bags she recorded those observations in the following table 6 is $2.10 8 is $2.80 and 16 is to $5.60 use the relationship to predict the cost of a 20oz bag of coffee.