Question

if you are trying to find an angle and you only have this equation, 3x-14, how do you solve

Answer 1

Well, that's actually an expression, not an equation.

An equation needs equal expressions, like\[y=3x-14\]I assume that the angle you want to know is on the graph of \(y=3x-14\).

Does that seem right, so far?

Answer 2

yes

Answer 3

Alright, now, have you learned trigonometric functions yet?

Answer 4

not yet

Answer 5

Is this a question for class, or is it your own curiosity? I might have to research another way to get the angle than I had thought of using earlier.

Answer 6

this is homework from summer

Answer 7

And you don't know about the tangent a.k.a. \(tan\) function?

Answer 8

no

Answer 9

Well, I guess we might as well look at the graph.I'm not sure which angle the question wants, but I assume it's the angle of the line measured from the x-axis and you would use the tangent function.

Maybe I can find others to help us...

With the tangent function, you use the equation \(tan^{-1}(m)=\theta\) where \(m\) is your slope and \(\theta\) is its angle.

Answer 10

ok

Answer 11

nevermind

Answer 12

I would imagine you are, especially if you never used the tangent function! But I don't know any other way!

Answer 13

Alternatively you can just use a protractor and graph paper.

Answer 14

Ahhhhhh.... I seeee.... So, measuring, not calculating. I think I remember doing that before, too.

Answer 15

oh so instead of finding y you just measure from what x is?

Answer 16

So you'll need to have grid paper, so your line is straight and your axes are perpendicular and everything is accurate. Then you can measure the line accurately.

Thank you, @Hero !