X + y = -2
x - y = 6 solve using substitution show work please

x=2

​y=−4

Step-by-step explanation:

1. Solve for x in x+y=-2

x=−2−y

2. Substitute x=-2-y into x-y=6

−2−2y=6

3.  Solve for y in -2-2y=6

y=−4

4. Substitute y=-4 into x=-2-y

x=2

5. Therefore,

x=2

​y=−4

​​

the formula of a slope:

from a table we have

substitute:

the slope of f(x) is -1.

the graph of funcfion g(x) is a horizontal line. the slope of a horizontal line is equal 0. therefore the slope of g(x) is 0.

-1 < 0