A review of ABC Corporation's accounting records found that at a volume of 80,000 units, the variable and fixed cost per unit amounted to $7 and $6, respectively. What is ABC's cost function based on this information? y=$1,040,000 + $7(x) y = $560,000 + $6(X) None of the answers are correct y=$480,000 + $70) y=$6 + $7(x) y=$480,000 + $6(x)