<p>1. Pairs of lines related to slope. </p><p>The building code in Lineton, Virginia, requires that the slope of a stairway cannot be steeper than .85. The stairs in Bob Brown’s home measure 12 inches deep and 8 inches high. Do the stairs in his home meet the code requirements? How does slope relate to this problem? 12 8 12 8 12</p><p>8 12 8</p><p>2. A ramp for use by disabled persons using wheelchairs should have at least a 12-inch run for each rise of 1 inch, with a maximum rise of 30 inches. A local clinic needs to design a ramp 45 feet long. Determine the appropriate slope of the ramp in order to conform to the standards. </p><p>3. The maximum road grade recommended by the Federal Highway Commission is 12%. This means tht the slope of a road should be no more than 12/100 or 0.12. At the maximum grade, a road would change 12 feet vertically for every 100 feet horizontally. a. How many horizontal feet will it take for a road with the maximum grade to drop 240 feet? b. If the maximum grade for railroad tracks is 2%, how many more miles will it take a train to climb 500 feet than it will take a car on a road that has the maximum grade?</p>