# The function W defined by W(alpha)=1.9alpha + 2.3 models the weight of a kitten, in ounces, that is a weeks old for 0 <= alpha <= 6. According to this model, what is the weight, in ounces, of a kitten that is 3 weeks old?

The function W defined by $W\left(\alpha \right)=1.9\alpha +2.3$ models the weight of a kitten, in ounces, that is a weeks old for $0\le \alpha \le 6$. According to this model, what is the weight, in ounces, of a kitten that is 3 weeks old?
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Step 1
Given, the function W that models the weight of a kitten, in ounces, that is alpha weeks old for $0\le a\le 6$ is defined as
$W\left(\alpha \right)=1.9\alpha +2.3$
Step 2
We need to find the weight of a kitten that is 3 weeks old,i.e.we need to compute the value of W(3).
According to the given model,
$W\left(3\right)=1.9\left(3\right)+2.3=5.7+2.3=8$ ounces
Result: The weight of a 3 weeks old kitten is 8 ounces.