On the \(xy\)-plane above a line contains the points \((1,8)\) and \((5,2)\). This line is the graph of a linear function. What is the formula for this linear function?

\[ y(x) = \answer {-\frac {3}{2}} (x - \answer {5}) + 2 \]

On the \(rt\)-plane above, a line contains the points \((-5,-2)\) and \((3,9)\). This line is the graph of a linear function. What is the formula for this linear function?

\[ t(r) = \answer {\frac {11}{8}} (r - \answer {3}) +9 \]

On the \(pn\)-plane above, a line contains the points \((-5,-1)\) and \((4,8)\). This line is the graph of a linear function. What is the formula for this linear function?

\[ n(p)= \answer {1} (p + 5) + \answer {-1} \]
2025-05-17 23:58:11