What Are D and A₁ in the Following Arithmetic Sequence

question 11

Multiple Choice

What are d and a₁ in the following arithmetic sequence? ​
2, 3, 4,...
​

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Definitions:

Factorial Research

A research design that involves two or more independent variables, also known as factors, and examines their interaction and main effects.

Single-Factor Research

An experimental design where the effect of a single independent variable on a dependent variable is assessed.

Independent Variable

A variable that is manipulated or categorized to observe its effect on a dependent variable in experimental research.

Interaction Effect

In statistics, a circumstance where the effect of one independent variable on a dependent variable is different at different levels of another independent variable.