Question

Question #e5a65

Answer 1

`5^(th)` x-intercept is at `x=5` [or at `(x,y)=(5,0)`]

Explanation:

The graph of `sin(theta)` crosses the X-axis at every integer multiple of `pi`

The `5^(th)` time (after and excluding the origin) the sine curve crosses the X-axis will be at `theta=5pi`

Replacing `theta` with `xpi`
we have that the `5^(th)` crossing will happen when `xpi=5pi`;
that is, when `x=5`