Which matrix represents the system of equations shown below
plz ..
see picture

Matrix D represents the given system of equation.

Step-by-step explanation:

We have been given system of equation:

And

Coefficient of first equation will form first row and the constant on right hand side will comes in the side column  and second equation will form second row the constant on right hand side will comes in the side column

Hence, the matrix will be given by:

Matrix D represents the given system of equation.

a 4/6 = 9/12   not proportional

step-by-step explanation:

to find which are not proportional, we can use cross products

if it is true, they are proportional.   if it is not true, they are not proportional.

a 4/6 = 9/12

4* 12 = 6*9

48 = 54

not this is not proportional  

b 2/3 = 12/18  

2* 18 = 3 * 12

36 = 36

this is proportional

c 5/4 = 10/8  

5*8 = 4*10

40 = 40

this is proportional

d 7/5 = 35/25

7*25 = 5 * 35

175 = 175

is proportional