What is the function rule for this input and output table?

Each pair of numbers in the table is related by the same function rule. That rule is: multiply each input number -value) by 3 to find each output number -value). You can use a rule like this to find other values for this function, too.

Step-by-step explanation:

typically if you want , you would actually put questions here for us to you. but hey, that's just me. maybe someone will magically answer the questions for you without knowing what they are.

it would open into a square depending on the type of envelope i’m not sure about the second part