Consider the two functions below. Which one of these functions is linear? What is its equation? Enter any answers to two decimal places X y 3 6 LO 5 Function A 9 10 15 Function 8 ts equation is y = 12 20 15 25 is linear. X+ 9 8 6 4 3 2 1 0 y 0 1 2 3 Function B 4 5 6 7 8 9 X