r = -6
Step-by-step explanation:
The slope of a line is defined as

Let
and
. Since m = -1, we can write

or

Answer:
y=31
Step-by-step explanation:
Supplementary angles, the total degrees would be 180, so to get y you would do 180-149=31
Answer:
slope is 2
Step-by-step explanation:
first add -14x like...
-14x+7y=-9
+14x +14x
7y=14x-9
divide 7 by the who equation
7y=14x-9
/7
y=2x-9/7
Answer:
You plug in the values of x's and then minus 1 and you get your y