Precalculus 1st Semester Review

The common difference is -11.

The equation represents a Parabola.

The series has No Sum.

The 32nd term is 127.

The center of the ellipse is (1, 0).

An arithmetic sequence is a sequence of numbers in which the difference between consecutive terms is constant.

The nth term is given by $$a_n = a_1 + (n-1)d$$ , where $$a_1$$ is the first term and $$d$$ is the common difference.

The standard form of a parabola is $$y = a(x-h)^2 + k$$ , where (h, k) is the vertex.

The sum is given by $$S_n = \frac{n}{2}(a_1 + a_n)$$ .

A conic section is a curve obtained by intersecting a cone with a plane, resulting in shapes like circles, ellipses, parabolas, and hyperbolas.