The answer to the missing value is X = 3
T is greater than -15 because numbers after -15, like -16... are less than -15, so when its decreasing it gets lower. Since the questions says the temp stayed above -15, that means the temp could be -14...-13 and so on.
Answer:
you type your answer into the computer and find the domin x intercept ect
Answer: A. 4
Im in high school this is simple math so. Your welcome