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The number of integral values of `m`for which the x-coordinate of the point of intersection of the lines `3x+4y=9`and `y=m x+1`is also an integer is2 (b) 0(c) 4 (d) 1A. 2B. 0C. 4D. 1 |
Answer» Correct Answer - A `"Solving "3x+4y=9, y=mx+1, "we get" ` `x=(5)/(3+4m)` Here, x is an integer if 3+4m=1,-1,5,-5. Hence m=-2/4, -4/4, 2/4,-8/4. So, m has two integral values. |
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