Question

The line of best fit is given as y = 9 - 3x. Find the value of y when x = -3.091827

Answer 1

We are given the equation

`y=9-3x`

We want to find y when x = -3. We only need to put x = -3

`\begin{gathered} y=9-3x \\ y=9-3(-3) \\ y=9+9 \\ y=18 \end{gathered}`

Therefore, the answer is

`\begin{equation*} 18 \end{equation*}`