Question

Which is the correct classification for this system?
x - y = 1

2x + y = 4


A. Inconsistent
B. Consistent independent
C. Coincident

Answer 1

add the two equations

x-y = 1
2x+y = 4
---------
3x+0y = 5

Answer 2

3x+0y = 5 turns into 3x = 5 which means x = ???

Answer 3

1.6

Answer 4

then we can use this x value to find the corresponding y value

Answer 5

x-y = 1

1.6-y = 1

y = ??

Answer 6

0.6???

Answer 7

so B?

Answer 8

yep we have a single solution so the system is both independent and consistent

Answer 9

thanks(:

Answer 10

yw