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**Calc. Angle between radius vector point and positive x axis? What does that mean???**

## Homework Statement

The cartesian coordinates of a point in the xy

plane are x = −8.96 m, y = −1.75 m.

Calculate the angle between the radius-

vector of the point and the positive x axis

(measured counterclockwise from the positive

x axis, within the limits of −180◦ to +180◦).

Answer in units of ◦.

## Homework Equations

arctan of (y/x) = angle/degree

## The Attempt at a Solution

I did arctan of y/x = 11.051 incorrect....

I did the arctan of y/x + 180 and got 191.05 incorrect...

I did that same method - 180 = 168 ish still inccorrect...

then I did arctan of x/y + 180= 258 ish and still wrong..

any ideas what this question is asking for? or what the correct answer is??