Determinants Matrices Question 14

Question: If , then y = $ f(x) $ represents

Options:

A) a straight line parallel to x-axis

B) a straight line parallel to y-axis

C) parabola

D) a straight line with negative slope

Show Answer

Answer:

Correct Answer: B

Solution:

  • [b] $ R_3\to R_3-2R_2 $ , hence two identical rows
    $ \Rightarrow f(x)= $ constant.
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