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**Answer:**

**Step-by-step explanation:**

**Question 1.**

Slope of line 'l' =

=

=

Equation of a line passing through (x', y') and slope 'm' is,

y - y' = m(x - x')

Since, line 'l' is passing through (0, 7) and slope =

Equation will be,

y - 7 =

**y = **

Similarly, slope of line m =

=

=

Therefore, equation of line 'm' passing through point (0, -4) will be,

y + 4 =

**y = **

**Solution = **Point of intersection of both the lines

=** (-6, -1)**

**Question 2**

Slope of line 'l' =

=

Equation of line 'l' passing through a point (0, 4) and slope = -

y - 4 =

**y = **

Slope of line 'm' =

=

Equation of line 'm' passing through a point (0, -1) and slope =

y + 1 =

**y = **

Since, slopes of both the lines are same, these lines will be parallel.

There will be **NO SOLUTION.**