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(a)
(b)
(c)
(d)
6. ,.
(a) Find a linear equation in the variables x and y that has the general solution
(b) Show that , is also the general solution of the equation in part (a).
The curve shown in the accompanying figure passes through the points , , and . Show
7. that the coefficients a, b, and c are a solution of the system of linear equations whose augmented matrix is
Figure Ex-7
Consider the system of equations
8.
Show that for this system to be consistent, the constants a, b, and c must satisfy .
