Answer:
I think the answer is B.
Step-by-step explanation:
I'm just going by how it looks but I am pretty sure that <em>n</em> is -0.5 and <em>m</em> is 2.5. Therefore, if you add -0.5 + 2.5 it equals 2.0.
Speed = slope of the line = 20 / 0.5 = 40 km / hr
Second part will be a line with downward slope from the end of the horizontal line Slop = 20 / 1/3 (=60 km/h) So it will pass through the 65 on horizontal axis.
<span>y=-3x-4
slope = 3
perpendicular to line then slope = 1/3
answer
</span>slope of a line perpendicular to <span>y=-3x-4
</span><span>=
1/3
</span>
It's wxyz because i know it