Solve the system using substitution write your final answer as a coordinate point

5x - y = 4

2x + 2y = 16

x=2 and y=6;   (2,6) are coordinate points

Step-by-step explanation:

5x-y=4i)

2x+2y=16ii)

multiply eq.i) by 2

10x-2y=8...iii)

add eq ii and iii

10x-2y+2x+2y=8+16

12x=24

x=2

put x=2 in eq i

5(2)-y=4

10-4=y

6=y

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

answer: (c) m∠qpo + (2x + 16)° = 180°

step-by-step explanation:

the opposite angles of a quadrilateral are supplementary.

so, ∠o + ∠q = 180°   and   ∠p + ∠r = 180°

since ∠r = 2x + 16°, we can use substitution as follows:

∠p + ∠r = 180°

∠p + (2x + 16)° = 180°