What is the meaning of this question?

Is a positive integer raised to a negative power always positive

Y= 4x + 3 y = - 1 4 x - 5 what is the best description for the lines represented by the equations?

What is the explicit rule for the sequence in simplified form? −1,−4,−7,−10,−13… an=4−5n an=−4−3n an=2−3n an=−6−5n