Write the solution as an ordered pair (x, y)

(-3, -1)

Step-by-step explanation:

The solution of this system of equations is represented where the two lines meet. If you trace along the lines to see where they meet, you will see it is these values.

(-3, -1)

Step-by-step explanation:

The solution of this system of equations is represented where the two lines meet. If you trace along the lines to see where they meet, you will see it is these values.

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