2 years ago

What is the rate of change

Mathematics

2 answers:

Norma-Jean [14]2 years ago

8 0

Answer:

the R.O.C. would be -4.

Step-by-step explanation:

LenKa [72]2 years ago

5 0

The rate of change is -4

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nalin [4]

Answer:

The solution of the system of equations is the point (-3,0)

Step-by-step explanation:

we have

$-3x+y=9$ -----> equation A

$2x-y=-6$ -----> equation B

Adds equation A and equation B

$-3x+y=9\\2x-y=-6\\------\\-3x+2x=9-6\\-x=3\\x=-3$

Find the value of y

$-3(-3)+y=9$

$9+y=9$

$y=9-9=0$

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Step-by-step explanation:

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