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At what points the graph of the linear equation 2x-y=7 cut the Y=axis |
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Answer» Step-by-step explanation:Just as you know an intersection is a point of contact between two or more lines in a graph. So here the line defined as -2x + y -7 =0 is intersecting the Y-axis. We don't know where this God knows line intersecting the Y-axis may be at (x1,y1) or (x1,y2) or (x1,y3) but what we know is any line which intersect(point of contact on) Y- axis has a magnitude of 0(ZERO) on X- axis and vice versa. i.e. all coordinates at Y-axis must be (0,y) & all coordinates at X-axis must be (x,0) So here if I deduce the EQ. as y = 2x +7. Do you have any problems? Now put 0 in place of x variable as I said earlier that any point or coordinates on Y axis has a x magnitude of 0 => y = 2*0 + 7 i.e. y = 7 So we get x = 0 and Y = 7 The answer for the coordinate is (0,7) 1.3K viewsView upvotes |
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