WILL GIVE BRAINIEST. Tony drives 18 miles to pick up his friend at his house. Then he drives at a constant speed of 40 miles per hour to a state park to go hiking. Let y represent the number of miles that Tony drives after x hours. Which of the following statements are true? Select all that apply. A The relationship can be represented by the equation y = 40x + 18. B If Tony travels for 1.5 hours, he will have driven a total of 60 miles. C The initial value is 18 miles. D The rate of change is negative.