(1,-2),(3,-5),(3,-2),(5,-7),(7,-8)\ \ (0,1),(1,-3),(2,-5),(3,-7),(4,-9)\ \ (-1,1),(-1,3)(-1,5),(-1,7),(-1,9)\ \ (-4,0),(-3,-1),(-3,1),(0,-2),(0,2)\

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

no

step-by-step explanation:

m=-16

step-by-step explanation:

5

step-by-step explanation: