For the exponential model, what is the decay factor?

In the figure shown below, m < 40 and ab =8. which equation could be used to find x?

Which number produces a rationale number when multiplied by 1/5

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