y = 2x + 3
2y = 4x + 6

The system of equations has _____ solution(s).

no
one
infinite

Question

y = 2x + 3
2y = 4x + 6

The system of equations has _____ solution(s).


no
one
infinite

kc_kennylau · Answer

Graph them out first :) (you can use desmos to do so)

If the two points:
Are parallel: no solution
Intersect at a point: one solution
Coincide: infinitely many solutions

kc_kennylau · Answer

If you don't wanna graph them out, you can use the slopes of the two lines:

Slopes are different: one solution
Slopes are the same, y-intercept same: infinitely many solutions
Slopes are the same, y-intercept different: no solution

kc_kennylau · Answer

P. S. The latter method is the same as the former method, except for the lack of the need of using a graph.

kc_kennylau · Answer

To know the slope and the y-intercept, you can change the equations to slope-intercept form (that means making y the subject)

anonymous · Answer

i just need the answer

anonymous · Answer

again...

anonymous · Answer

yes

anonymous · Answer

thats not really allowed you know...