(-2,2)(5,1)
slope(m) = (1 - 2) / (5 - (-2) = -1 / 7
y = mx + b
slope(m) = -1/7
use either of ur points....(5,1)....x = 5 and y = 1
now sub and find b, the y int
1 = -1/7(5) + b
1 = -5/7 + b
1 + 5/7 = b
7/7 + 5/7 = b
12/7 = b
equation is : y = -1/7x + 12/7....but we need it in standard form...
y = -1/7x + 12/7
1/7x + y = 12/7
x + 7y = 12 <== standard form
Here is the answer to ur question
The part D is the correct one...
Answer:
8 -7/16 y+4/5 p - 3/8 y
-7/16 y -3/8 y expand fraction so it would turn to
-7y/16-3y/8
multiply by 2 on the 3/8 to get a common demominator
-7y/16-6y/16
-7y-6y/16
collect like terms
-13y/16
rewrite fraction
- 13/16y
so the whole equation would turn into
8-13/16y+4/5p
Regroup terms
Add 2x to both sides
Simplify 4 - x + 2x to 4 + x
subtract 4 from both sides
subtract -6 - 4.
Answer: x = -10
