Answer:
1/7 1/4
Step-by-step explanation:
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A line that has a y-int. but no x-int. is a horizontal line, with slope m = 0.
Are these simultaneous questions or like seperate ones?
Simultaneous:
4x -3(7x-4) = 12
4x - 21x + 12 = 12
-17x = 0
X = 0
Therefore y = -4
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If it's a graph
x int: (3,0)
Y int: (0, -4)
Um idk if that's the answers you wanted but I hope it helped somehow??