There are design specifications for the minimum sight distance (distance to see an approachÂing vehicle measured along the roadway from the intersection of the two roadways) that a driver stopped at a stop sign must have to safely enter a roadway where vehicles do not stop. Values in the table below are for safe entry to cross the roadway (not to turn onto the other roadway but to cross) where vehicles do not stop.
 FIGURE 1.png)
(a) Plot a graph with design speed as the independent variable.
(b) Determine the equation of the relationship using the method of selected points.
(c) Determine the equation of the relationship using computer-assisted methods.
(d) Predict the slight distance required at 55 mph.
 ANSWER.png)
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