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1. indicate the equation of the given line in standard form.

the line with slope 9/7 and containing the midpoint of the segment whose endpoints are (2, -3) and (-6, 5).

2. indicate the equation of the given line in standard form.

the line through the midpoint of and perpendicular to the segment joining points (1, 0) and (5, -2).

3. indicate the equation of the given line in standard form.

the line containing the midpoints of the legs of right triangle abc where a(-5, 5), b(1, 1), and c(3, 4) are the vertices.

4. indicate the equation of the given line in standard form.

the line containing the hypotenuse of right triangle abc where a(-5, 5), b(1, 1), and c(3, 4) are the vertices.

5. indicate the equation of the given line in standard form.

the line containing the longer diagonal of a quadrilateral whose vertices are a (2, 2), b(-2, -2), c(1, -1), and d(6, 4).

6. indicate the equation of the given line in standard form.

the line containing the median of the trapezoid whose vertices are r(-1, 5) , s(1, 8), t(7, -2), and u(2, 0).

7. indicate the equation of the given line in standard form.

the line containing the altitude to the hypotenuse of a right triangle whose vertices are p(-1, 1), q(3, 5), and r(5, -5).

8. indicate the equation of the given line in standard form.

the line containing the diagonal of a square whose vertices are a(-3, 3), b(3, 3), c(3, -3), and d(-3, -3). find two equations, one for each diagonal.