Line n passes through points (7, 12) and (4, 15). what is the slope of a line that
is perpendicular to line n?

So anytime we have a slope and want to find the slope of a perpendicular line, we just have to remember a perpendicular line's slope is the negative reciprocal (reciprocal means flip the fraction). So if we had a slope of 3/4, the slope perpendicular to it would be - 4/3.

First we need to find our slope, to do this we take the change in y over the change in x like so:

(15-12)/(4-7) = - 3/4

The slope perpendicular to this is 4/3.

They sought new allies to germany tried to get mexico to join and put pressure on the us. the us joined the allies because of the lucitania

Absolute value graph shifted point 5 up