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ridgebax1
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From Mathematics: Algebra
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Due on Oct. 23, 2008
Asked on Oct. 23, 2008 at 08:24:21AM

Q:
3. The points (3, 9), (5, 13), (15, 33), (34, 71), (678, 1359), and (1234, 2471) all lie on line M.
The points (3, -9), (5, -11), (15, -21), (34, -40), (678, -684), and (1234, -1240) all lie on line N.
a. Form the equations of both the lines. Show your work.
b. What are the co-ordinates of the point of intersection of lines M and N?
c. Write the co-ordinates of the intersections of lines M and N with the x-axis.
d. Write the co-ordinates of the intersection of lines M and N with the y-axis.

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jotag1714
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Posted on Oct. 23, 2008 at 08:53:11AM

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Preview: ... x = -6 (2) Mulitply (1) with -1 then add it to (2) -y + 2x = -3 y + x = -6 ------------- 3x = -9 x = -9/3 x = -3 Substite the value of x to (1) y - 2x = 3 y - 2(-3) = 3 y +6 = 3 y = 3 - 6 y = -3 Answer (-3,-3) C.Write the co-ordinates of the in ...

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Posted on Oct. 23, 2008 at 08:53:37AM

A:
Preview: ... -3 The point of intersection is (x, y) = (-3, -2) (c) When y = 0, 2x + 3 = 0 x = -3/2 M intersecrs the x- axis at (-3 ...

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Roozbeh_E
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Posted on Oct. 23, 2008 at 09:37:43AM

A:
Preview: ... (x-3)/(y-9) ...

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