91Ó°ÊÓ

What must be done to a function's equation so that its graph is stretched vertically?

What must be done to a function's equation so that its graph is shrunk horizontally?

Define a piecewise function on the intervals \((-\infty, 2],(2,5)\) and \([5, \infty)\) that does not "jump" at 2 or 5 such that one piece is a constant function, another piece is an increasing function, and the third piece is a decreasing function.

Solve: \(\sqrt{x+10}-4=x\) (Section P.7, Example 12)