steps in the process of simplifying the given matrix to​ row-echelon form, with 1s down the diagonal from upper left to lower​ right, and 0s below the​ 1s, are shown. Fill in the missing numbers in the steps that are shown. 1 2 3 −8 2 −3 3 −25 3 −1 −4 7 → 1 2 3 −8 0 −7     0 −7       → 1 2 3 −8 0 1     0 −7

The matrix B is the result of performing a single row operation on the matrix A shown below. Identify the row operation. A= -1 3 4-4 - 12 B. Choose the correct answer below. OA. -4R₂ R₂ 1 -R₂ R₂ B= OC. 4R₁ + R₂ R₂ OD. -4R₁ + R₂ R₂ -13 7 0 8 16 ****

Fill in the blanks of the resulting matrix after the given row operation is performed: -1 8 3 -1 7 -4R₁ 3 R₁ 381 3 -1 8 R₂+3R₁ -1 7 -4 -1 8 R₁-4R₂ 7 R₂ R₁

The figure to the right shows the letter L in a rectangular coordinate system. The figure can be represented by the matrix B, shown to the right. Each column in the matrix describes a point on the letter. The order of the columns shows the direction in which a pencil must move to draw the letter. The L is completed by connecting the last point in the matrix, (0,9), to the starting point, (0,0). Use these ideas to complete parts (a) and (b) below. a. If A = AB - 1 0 [!!] 0 1 find AB. (Simplify your answer.) b. Graph the object represented by matrix AB. What effect does the matrix multiplication have on the letter L represented by matrix B? Choose the correct graph below. A. O B. Rotates the letter L about the origin. Reflects the letter L across the x-axis. O C. Q 077 11 0 B-[07718] 001 199 B= Reflects the letter L across the y-axis.

Please show all work when answering the following question. This is an unsolved and ungraded example from lecture