Question

Find the inclination, theta, of the line passing through the points (5,0) and (-5,5)

Answer 1

could someone tell me the equation to use?

Answer 2

Inclination is actually the slope which is \[\tan \theta \] So find the slope first using the points given.

Slope = \[\frac{ y _{2} - y _{1}}{ x _{2} - x _{1} }\]

Answer 3

Can you find the slope?

Answer 4

it is -.5

Answer 5

yes

Answer 6

now \[\tan \theta = -0.5\] So \[\theta = \tan^{-1} (-0.5)\] use calculator to find it

Answer 7

it gives me - 26.6

Answer 8

i have the choices of 26.6, 153.4, 63.4, 116.6 or none of these

Answer 9

and so would it 26.6 ?

Answer 10

oh. okay! Thank you!

Answer 11

My earlier answer is right bad teacher. it is 153.4 and that is final