A hot pizza is taken out of the oven when its temperature is…

A hоt pizzа is tаken оut оf the oven when its temperаture is200∘Fand left on a table in a room where the temperature is 75∘F. The graph shows how the temperature of the pizza decreases and eventually approaches room temperature. By measuring the slope of the tangent, estimate the rate of change of the temperature after 45 minutes.