asked 97.0k views
3 votes
Which system of equations has only one solution
4x+2y=8 -4x-2y=3

asked
User Wheleph
by
8.5k points

1 Answer

5 votes
Answer is this system of equations has NO solution

Step by step

4x + 2y = 8
Arrange in y intercept form
2y = -4x + 8
Divide all by 2 to solve
y = -2x + 4

-4x -2y = 3
Arrange in y intercept form
2y = -4x -3
Divide all by 2 to solve
y = -2x -3/2

These equations have the same slope (2) with different y intercepts, so they are parallel lines. Parallel lines never intersect so there is no solution.
answered
User Dnord
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8.0k points

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