Fill in the blanks to complete the steps for finding the equation of a parallel line. Start with the
form: y-yı = m(x - x).
Identify the
in the given equation.
Substitute this for
in y-yı = m(x -x.).
Substitute the given point's coordinates for
and
in y-yı = m(x = x,).
Isolate y by distributing and simplifying to rewrite the equation in
= mx + b.
form: y
1) Protice

1.point-slope

2.slope

Step-by-step explanation:

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

answer: 8

step-by-step explanation: