Which system of equations is equivalent to the following system?
2x + 4y = 14
4x + y = 20
a.2x + 4y = 14
-16x – 4y = -80
b.2x + 4y = 14
- 4x + y = -20
c.4x + 8y = -28
4x + y = 20
d.-2x - 4y = 14
4x + y = 20

A

Step-by-step explanation:

Given :

2x + 4y = 14   eq 1

4x + y = 20 eq 2

if you multiply eq 2 by -4 on both sides, you get

-4 (4x + y = 20) = -4 (20)

-16x -4y = -80 eq3

we can see that eq. 1 and eq 2 together forms the system of equations presented in option A, Hence A is equvalent to the orginal system of equations given in the question.

Step-by-step explanation:

B.

C.

D.

g(x) is the negative form of f(x)? because whenever its the negative form it reflects its self over the x axis. idk if this is right though.

step-by-step explanation: