Question

Systems of equations with different slopes and different y-intercepts have one solution. Plzzz explain

A) always
B) sometimes
C) never

Answer 1

y=2x+4, the slope is 2, A(0,4)-y intercept
y=x+2, the slope is 1, B (0,2)- y intercept

the system is 2x-y=-4
-x+y= 2
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x= -2
y=0 is the solution ( only one)