The graph of an equation with a negative discriminant always has which characteristic?

Suppose that x and y are both differentiable functions of t and are related by the given equation. use implicit differentiation with respect to t to determine startfraction dy over dt endfraction in terms of x, y, and startfraction dx over dt endfraction .

If sec theta = 5/3 and the terminal point determined by theta is in quadrant 4, then

Can some one explain this i got sent this. is this a threat i’m scared