SOLUTION: Find the slope and angle inclination of a line passing through A(7,-5) and B(4,4)? Please answer.. I'm begging..

Question 684045: Find the slope and angle inclination of a line passing through A(7,-5) and B(4,4)?
Please answer.. I'm begging..
Answer by jim_thompson5910(35256) (Show Source): You can put this solution on YOUR website!
Note:

is the first point

. So this means that and .
Also,

is the second point

. So this means that and .

Start with the slope formula.

Plug in , , , and

Subtract from to get

Subtract from to get

Reduce

So the slope of the line that goes through the points

and

is

The angle of inclination is

theta = arctan(rise/run)

theta = arctan(3/1) ... note: make the rise positive

theta = 71.56505

So the angle of inclination is roughly 71.56505 degrees
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