Question

A line contains the points (8, 9) and (–12, –7). Using point-slope form, write the equation of the line that is parallel to the given line and that passes through (–5, –15).

Answer 1

The lines have equal gradients;
m$\frac{16}{20} = \frac{4}{5}$

Equation of line 2;
y=mx+c
y=$\frac{4}{5}$x+c
-15=$\frac{4}{5*(-5)}$+c
c=-11
y=4/5x-11