What is the slope of any line parallel to the line 8x+9y=3 in standard (x, y) coordinate plane?

The slope of any line parallel to the line 8x+9y=3 in standard (x,y) coordinate plane is .

We write 8x + 9y = 3 in the slope intercept form.

The slope of the line 8x + 9y = 3 is = .

We know that the slope of parallel lines are same.

So the slope of any line parallel to the line 8x+9y=3 in standard (x,y) coordinate plane is .

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ad = ae + ed = y + 7

similar triangles therefor

ac/ab = ad/ae

6/4 = (y + 7) / y

cross multiply

6y = 4(y + 7)

6y = 4y + 28

2y = 28

y = 14

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