### Valley Metro Light-Rail Starts Today (2008.12.27)

Valley Metro light-rail runs 20 miles from central Phoenix to west Mesa (19th Avenue and Montebello in Phoenix to Sycamore and Main Street in Mesa). The light-rail cost \$1.4 billion to build.

```   Adult fares -- ages [19, 64]
==============================================================
one-ride   1-day pass   3-day pass   7-day pass    31-day pass
\$1.25      \$2.50        \$7.50        \$17.50        \$45
```
##### Exercises
1. If an adult rides the light-rail twice a day for `20 days`, then would they be better off buying 20 one-day passes or one 31-day pass? `_____________________`

2. `1.4 billion` written in scientific notation is `_____________________`.

3. The light-rail cost approximately `\$________ per mile` to build.

4. There are `eight park-and-ride locations` offering a total of ```3,513 parking spaces. In other words, on average, each park-and-ride location has ______________ parking spaces. [round down to nearest whole space] ```

``` ```
5. ``` There are 3,513 park-and-ride parking spaces with 300 (or ______%) of them located at the McClintock Road/Apache Boulevard park-and-ride. [Algebra] Define (i.e. write a symbolic rule) for a linear function that models the adult one-day light-rail fare. ____________________ ```
``` ```
``` Creator: Gerald Thurman [gthurman@gmail.com] Created: 27 December 2008 <!-- document.writeln("<b>URL:</b> " + document.URL + "<br />"); document.writeln("<b>Last Modified:</b> " + document.lastModified + "<br />"); //--> This work is licensed under a Creative Commons Attribution 3.0 United States License. ```