Could you tell me how to answer this

Identify a1 and r for the geometric sequence an= -256(-1/4) n-1

The table represents a linear function. what is the slope of the function? –6 –4 4 6

F(x)=x^3+4 question 6 options: the parent function is shifted up 4 units the parent function is shifted down 4 units the parent function is shifted left 4 units the parent function is shifted right 4 units