Determine Whether the Matrix Is in Row-Echelon Form $\left[ \begin{array} { r r r r } 1 & 8 & - 8 & 4 \\0 & 1 & 0 & 6 \\0 & 0 & 1 & - 9\end{array} \right]$

question 212

Multiple Choice

Determine whether the matrix is in row-echelon form.If it is, determine if it is also in reduced row-echelon form. $\left[ \begin{array} { r r r r } 1 & 8 & - 8 & 4 \\0 & 1 & 0 & 6 \\0 & 0 & 1 & - 9\end{array} \right]$

• A)row-echelon form and reduced row-echelon form
• B)row-echelon form
• C)neither

---

Definitions:

Discriminated Variable

A variable in experimental research that is manipulated or changed to determine its effects on dependent variables, differentiating it from control variables.

Stimulus

Anything that triggers a physical or behavioral change in an organism.

Neutral Prompt

A stimulus that does not inherently evoke a response prior to conditioning or learning in the context of behavioral experiments.

Classical Conditioning

A learning process that occurs when two stimuli are repeatedly presented together, leading one to elicit a response once elicited only by the other.