6x + 3 - 6x = 3
2 answers:
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Answer:
(0,1) and (-2,9)
Step-by-step explanation:
A point (x,y) lies on the graph of f(x) = if it satisfies the condition y =
x = 0 and y = 1.
This point satisfies the required condition as
= 1
Hence, this point <u>is</u> on the graph of f(x) =
x = 3 and y = 27.
This point doesn't satisfy the required condition as
=
≠ 27
Hence, this point i<u>s not</u> on the graph of f(x) =
x = -2 and y = 9.
This point satisfies the required condition as
=
= 9
Hence, this point <u>is</u> on the graph of f(x) =
x = -1 and y = .
This point satisfies the required condition as
y = =
= 3 ≠
Hence, this point <u>is not</u> on the graph of f(x) =
Answer:
1. The matrix A isn't the inverse of matrix B.
2. |B|=12, |A|=12
Step-by-step explanation:
1. We want to know if matrix A is the inverse of matrix B, this means that if you do the product between B and A you have to obtain the identity matrix.
We have:
and
A and B are 2×2 matrices (2 rows and 2 columns), if you multiply them you have to obtain a 2×2 matrix.
Then if A is the inverse of B:
Where,
Observation:
If you have two matrices:
Now:
Then, the matrix A isn't the inverse of matrix B.
2. If you have a matrix A:
The determinant of the matrix is:
Then the determinant of B is:
The determinant of A is: