Does the following system have a unique solution? why?
a) no, because the determinant of the coefficient matrix is 0.
b) no, because the determinant of the coefficient matrix is 12.
c) yes, because the determinant of the coefficient matrix is 0.
d) yes, because the determinant of the coefficient matrix is 12.

A) No, because the determinant of the coefficient matrix is 0.

Step-by-step explanation:

The determinant of the matrix   is .

The given system is .

The coefficient matrix for this system is:

The determinant of this matrix is

Since the determinant is zero, the system has no unique solution.

The correct choice is A.

A) No, because the determinant of the coefficient matrix is 0.  

Step-by-step explanation:

see attached

step-by-step explanation:

given the function as;

write the equation replacing f(x) with y

form   and fill a table containing values of y with corresponding values of x

you can take a range for   values of x as -3≤x≤3

solving for x=-3

for x=-2

repeat the same procedure to get the values of y for the remaining ,x=-1 to x=3

plot the values of y against values   of x and obtain the following graph

the correct answers i think are b. and d.

give me brainliest if it is correct!