Question
An equation that defines y as a function of $x$ is given. (a) Solve for $y$ in terms of $x$ and replace y with the function notation $f(x)$, (b) Find $f(3)$. See Example 8.$$x+3 y=12$$
Step 1
We start with the given equation $x+3y=12$. We can isolate $y$ by subtracting $x$ from both sides of the equation, which gives us $3y=12-x$. Show more…
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