Problem

Geometry: intersecting point) Two points on line 1 are given as (x1, y1) and (x2, y2...

Geometry: intersecting point) Two points on line 1 are given as (x1, y1) and (x2, y2) and on line 2 as (x3, y3) and (x4, y4), as shown in Figure 3.10a–b.

The intersecting point of the two lines can be found by solving the following linear equation:

This linear equation can be solved using Cramer’s rule (see Exercise 3.3). If the equation has no solutions, the two lines are parallel (Figure 3.10c). Write a program that prompts the user to enter four points and displays the intersecting point. Here are sample runs:

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Solutions For Problems in Chapter 3

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