Find the equation of the line using the point-slope formula. Write the final equation using slope-intercept form. (1,2) with a slope of -8/9

The point-slope formula is

Now let's plug in the values:

To put it into slope-intercept form, we have to solve for y and put all other variables and constants onto one side      

Hope that helps!

step-by-step explanation:

what grade level is this? need to know so i can look in my old textbooks!

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