Jacob sells lemonade at a park. His cost to sell the lemonade is a one-time fee for the table, plus a fixed cost to make each cup of lemonade. The line shows the total cost, y, for x cups of lemonade. y =__x+__

step-by-step explanation:

we have

using a graphing tool

see the attached figure

this is a quadratic equation (vertical parabola) open up

the vertex is a > vertex

the domain of the function is all real > interval (-∞,∞)

the range of the function is the > [-6.125,∞)

the function has two x->   and

the function is increasing over the > (0.25,∞)

the function is decreasing over the > (-∞,0.25)

add 8+12 to get a simplified answer of 12r-20