You are researching the growth of a species of fish You gather a sample of fish and record the age in weeks of each fish and its mass in grams The data is displayed on the grid below with the blue points Age of fish weeks Mass of fish g 4 8 12 16 100 350 350 500 28 36 40 44 350 900 1000 1050 You construct a linear model for the data and your equation is y 21 28x 75 03 where y is the mass in grams of the fish and is the age in weeks a Use the equation to identify the slope of the linear model Use the units for y and a along with the concept of rise over run to interpret the slope in this context b Use the equation to identify the y intercept of the linear model Use the units for y along with the concept that x 0 at the y intercept to interpret the y intercept in this context