The answer is (it can be curved) because it's doesn't have to cross the origin and it's a U shape so it can't look like a straight line and it doesn't have a constant rate of change. :)
Answer:
Step-by-step explanation:
the anwser to number 7 is d or (x2-4) (x2+4)
by the way try using the app called Photo Math i use it for my test it works greatyou should try it some day.
