Question

What is the slope of a line parallel to 10x - 5y = 8?

Answer 1

Slope of a parallel line is always the same. But let's first see the y = mx + b form.

-5y = -10x + 8

\(\Large \color{Black}{\Rightarrow y = {-10x + 8 \over -5} }\)

\(\Large \color{Black}{\Rightarrow y = 2x - {8 \over 5}}\)

m is the slope aka 2.
Parallel line's slope is always the same, so 2 is the slope.