Please help! I need help i keep getting them wrong

Step-by-step explanation:

Equation of line K:  

m₁ = -4/7

The slope of line I = -1 / m₁ = -1÷(-4/7)

                            =

                            = 7/4

( -5 , -10) ; m = 7/4

y - y1 = m(x - x1)

y - [-10] =

y + 10  =

y + 10 =

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