Write an exponential decay function to model the situation in the photo. Correct answer will get a Brainliest, a 5star rating, and a Thanks !​

Step-by-step explanation:

The formula for exponetial equation decay is

where a is the initial value and b is the decay factor.

A will be 56 since that our initial value.

b will be 0.9 since we are constantly decaying by 0.9.

so our equation is

f(x) is the value of the function. b is the value of the function when x equals zero or the y-coordinate of the point where the line crosses the y-axis in the coordinate plane.

step-by-step explanation:

hope this !