Question

Find the point on the terminal side of θ = negative three pi divided by four that has an x coordinate of -1.

Answer 1

$$\theta=-\frac{3\pi}{4}$$

$$tan\theta = 1 =\frac{\text{y coordinate}}{\text{x coordinate}}=-\frac{\text{y coordinate}}{1}$$

$$\text{y coordinate}=-1$$

$$P(-1,-1)$$