Prompt 1: 1. Find the output, y, when the
input, x, is 2.5.
y= 60 - 2x
2. Find the output, r, when the
input, h, is 24.
r=h/6 - 5

h is the x-coordinate of the vertex

step-by-step explanation:

we have

in this function

the point represent the vertex of the function

so

h is the x-coordinate of the vertex

k is the y-coordinate of the vertex