A satellite has a parabolic dish with a diameter of -1 cm. The radio signals are reflected on a focal point, being the focus of the parabola. If the focal length is 1.4 cm, find the depth of the dish.
MAT1275 College Algebra w/ Trig, SP2017
View of Manhattan Bridge from Brooklyn Waterfront: an important object of our study will be the parabola
so is Y = -1x^2+1.4
This parabola is not oriented straight up or down, so get an equation of the form y=ax^2 or y=-ax^2, the picture needs to be rotated.