MMA Midterm Review Linear, Quadratic and Exponential Regression

Front

What is a quadratic equation?

Back

A quadratic equation is a polynomial equation of degree 2, typically in the form ax² + bx + c = 0, where a, b, and c are constants.

Front

What type of regression is used for data that forms a straight line?

Back

Linear regression is used for data that forms a straight line.

Front

What does a negative correlation indicate?

Back

A negative correlation indicates that as one variable increases, the other variable tends to decrease.

Front

What is the general form of a linear equation?

Back

The general form of a linear equation is y = mx + b, where m is the slope and b is the y-intercept.

Front

What is the purpose of regression analysis?

Back

Regression analysis is used to determine the relationship between variables and to predict the value of one variable based on the value of another.

Front

What is an exponential function?

Back

An exponential function is a mathematical function of the form f(x) = a * b^x, where a is a constant, b is the base, and x is the exponent.

Front

How do you identify a quadratic function from a set of data?

Back

A quadratic function can be identified by its parabolic shape when graphed, indicating a relationship that can be modeled by a quadratic equation.

Front

What is the significance of the coefficients in a quadratic equation?

Back

The coefficients in a quadratic equation determine the shape and position of the parabola on the graph.

Front

What is the vertex of a parabola?

Back

The vertex of a parabola is the highest or lowest point on the graph, depending on whether it opens upwards or downwards.

Front

What is the difference between linear and quadratic regression?

Back

Linear regression fits a straight line to data, while quadratic regression fits a parabolic curve.