Two lines, A and B, are represented by the following equations:Line A: 4x + 4y = 16Line B: x + y = 4Which statement is true about the solution to the set of equations? (4 points)It is (1, 2).There are infinitely many solutions.It is (1, 5).There is no solution.
Question
Answer:
The correct answer is: [B]:___________________________________________________
"There are infinitely many solutions."
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(e.g. (0, 4), (1, 3), (-1, 5), (-2, 6), (-3, 7), (2, 2), (3, 1) ...
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Note:
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If we take the "first equation"; which is:
" 4x + 4y = 16 " ;
And divide "EACH SIDE of the equation by "4" ;
{4x + 4y) / 4 = 16 / 4 ;
→ 4x/4 + 4y /4 = 4 ;
→ x + y = 4 ;
which is the same as the "second equation" given:
→ x + y = 4 .
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solved
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10 months ago
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