Solve the following problems:
The points (3, y) and (x, -7) are located on the line
that passes through the point (2, 1)
and with a slope of 4. Find the missing coordinates.
2) If the straight line passes through the point (3, 2)
with an angle coefficient of 2/5 then
find the value of y on the line when x = 8, x = 11 and x
- 12.
3) Find the value of the parameter m such that the
straight line passes through the point (2, m)
and (-3, -5) has a slope of $\frac{1}{2}$
4) Find the value of the parameter m such that the
straight line passes through the point (m, 3)
and (-2, 0) has a slope of 3.
5) Find the line of a such that the straight line passing
through the points (1, a), (a, 1)
is perpendicular to the straight line that passes
through the points (-2, 5) and (3, -4).
6) Find the value of a such that the line passes
through the points (-1, a), (a, 1)
is perpendicular to the line passing through the
points (7, a) and (a, 2)