Question :

Suppose a mathematician$$s calculator has a function that computes the slope and intercept of a line. The requirement in the definition document reads: $$The calculator shall accept as input an equation of the form $$and print out the slope$$and intercept.$$ The system implementation of this requirement is the function LINE$$whose syntax is LINE $($A$,$ B$,$ C$),$ where A$$and B$$are the coefficient of x$$and y$,$ and C$$is the constant in the equation. The result is a printout D$$and E$,$ where D$$is the slope and E$$is intercept.

$$

a$.$ Write this requirement as a set of causes$$and effects, draw the corresponding cause$-$and$-$effect graph, and table. $(50$ points$)$

b$.$ Develop a set of minimal test cases$$based on your answer to Question $2.$a$.$ Use a black$-$box technique, providing justification for why you deem it adequate to test this program effectively. $(30$ points$)$