Nikki and Jonathan both solve this system of equations:
1 answer:
Answer:
Jonathan's solution is correct.
Step-by-step explanation:
Given system of equations are:
Now
The graph of the linear equation cuts the y-axis at the point
and x-axis at
And the graph of the linear equation cuts the y-axis at the point
and x-axis at
And their point of intersection is
And this is Jonathan's solution.
We can see from graph that point of intersection is
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Answer:
A) A is an invertible matrix ( TRUE )
B) A is a row equivalent to the n x n identity matrix ( n = 3 ) ( TRUE )
C ) The equation Ax = 0 has only the trivial solution ( TRUE )
D ) The columns of A form a linearly independent set ( TRUE )
Step-by-step explanation:
Assuming a matrix A
det A = 1 [ 0 -3 ] + 2 [12 + 5 ] + 1[-1]
= -3 + 34 -1 = 30 ≠ 0
THEREFORE det A = 30 ≠ 0
Attached is the detailed solution of the given statements above
