Answer:
is the required matrix form.
Step-by-step explanation:
Here, the given system of equation is:
5 x + 4 y = -14,
3 x + 6 y = 6
In a system of equation, the matrix for is given as
AX = b
Here, A = Co-efficient Matrix, X = Variable Matrix and B = Constant Matrix
Considering the given system:
Co-efficient Matrix(A) =
Variable Matrix(X) =
Constant Matrix(b) =
Hence, the combined matrix form of AX = b is
Suppose y= cot x is our parent function then remember general rules of transformation.
1) y= -f(x), reflects the graph of f(x) across x-axis.
2) y= cf(x), stretches the graph of f vertically by factor of c , for c >1.
Now, apply these rules to y= -4 cot(x)
the -ve sign reflects the graph of cot(x) across x-axis and the number 4 will stretch it vertically by 4 units.
The graph of both parent function (y=cot x ) and transformed function (y= -4 cot(x)) are attached below.
I think you cross multiply to get 8x=5y
Answer: X=3
Step-by-step explanation:
5x+2x+14=14x-7
7x+14=14x-7
7x-14x=-7-14
-7x=-21
x=3