Question

The equation yˆ=0.8579x+73.4728 models the mass of a mammal’s brain, in grams, where x is the mass of the mammal, in kilograms. According to the regression equation, what is the approximate mass of a mammal's brain with a body that has a mass of 60 kg?

Answer 1

the answer is----about 125 g

Answer 2

125 grams.

Explanation:

We have been given an equation
`y=0.8579x+73.4728`, which models the mass of a mammal’s brain, in grams, where x is the mass of the mammal, in kilograms.

To find the approximate mass of a mammal's brain with a body that has a mass of 60 kg, we will substitute
`x=60` in our given equation.

`y=0.8579*60+73.4728`

`y=51.474+73.4728`

`y=124.9468\approx 125`

Therefore, the mass of the mammal's brain is approximately 125 grams.