Question

without graphing is the system independent dependent or inconsistent -2x-y=9,
3x-4y=-8

a. dependent
b. inconsistent
c. independent
2. without graphing is the system independent dependent or inconsistent 12x+3y=12, y=-4x+5

Answer 1

try solving the system

Answer 2

hint: first multiply the first equation by -4 then add

Answer 3

this gives:

8x + 4y = 36
3x - 4y = -8 now add

Answer 4

what does that give?

Answer 5

oops - i made a mistake!

the first equation should be

8x + 4y = -36
3x - 4y = -8

Answer 6

r u there?