Find angle of inclination of line through (5, 5) and (-1, 7)

[hollerback1]

I have forgotten what buttons to push on my calculator after I find the slope.

Find the angle of inclination of line joining the points (5, 5) and (-1, 7)

I got -2/6 for the slope, but I don't know what to do after that.

 

[stapel]

What does your book mean by "angle of inclination"? What is it that you're trying to do on your calculator?

Please be specific. Thank you.

Eliz.

Note: Naturally, you'll want to simplify your fraction for the slope, as an unreduced fraction is usually counted as at least partially incorrect.

 

[hypoid]

I got -2/6 for the slope, but I don't know what to do after that.

you've found a tan function of angle. so the angle is tan(-1)(-1/3).