AP Precalculus Unit 1 Multiple Choice Questions Flashcards

Flashcards covering vocabulary from AP Precalculus Unit 1 multiple choice questions.

Decreasing at an increasing rate

A graph where the slope is negative and becoming more negative.

Average Rate of Change

The change in the value of a function divided by the change in the independent variable.

Concave Up

A curve that opens upwards.

Concave Down

A curve that opens downwards.

Rate of Change

The rate at which a quantity is increasing or decreasing.

Vertical Asymptote

A vertical line that a graph approaches but does not cross.

Horizontal Asymptote

A horizontal line that a graph approaches as x tends to +∞ or −∞.

Hole (in a graph)

A point where a function is undefined, but could be defined to make the function continuous.

Imaginary Roots

Roots of a polynomial equation that are complex numbers with a non-zero imaginary part.

Coefficient

A number multiplied by a variable in an algebraic expression.

Zero of a Function

A value of x for which f(x) = 0.

Point of Inflection

A point on a curve at which the sign of the curvature changes.

Domain

The set of all possible input values (x-values) for a function.

Range

The set of all possible output values (y-values) for a function.

Quartic Regression

A regression model that uses a quartic (degree 4) polynomial to fit a set of data points.