If the Slope of a Regression Line Is 1

question 17

Multiple Choice

If the slope of a regression line is 1.5, then________.

• A) for every unit of change in X, there is a change of 1.5 units in Y.
• B) for every unit of change in Y, there is a change of 1.5 in X.
• C) the score of each case is 1.5 times higher on Y than on X.
• D) Y causes X

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Definitions:

System of Equations

A set of two or more equations with the same set of variables, which are solved simultaneously to find common solutions.

Hyperbola

A type of smooth curve lying in a plane, consisting of two branches, which are mirror images of each other and resemble two infinite bows.

Center and Vertices

In geometry, the central point of a shape and the points that define its outermost corners or parameters, especially in polygons and ellipses.

Method of Substitution

A technique used in algebra to solve systems of equations by solving one equation for one variable and then substituting that expression into the other equation.