✍️ Quarter 1 Review

Front

What are the dimensions of a matrix?

Back

The dimensions of a matrix are defined by the number of rows and columns it contains, expressed as 'rows x columns'. For example, a 3x2 matrix has 3 rows and 2 columns.

Front

How do you determine if two matrices can be multiplied?

Back

Two matrices can be multiplied if the number of columns in the first matrix is equal to the number of rows in the second matrix.

Front

What is the result of multiplying a 2x3 matrix by a 3x2 matrix?

Back

The result is a 2x2 matrix.

Front

What is the parent function of absolute value?

Back

Front

How does shifting a graph to the right affect its equation?

Back

Front

What does stretching a graph vertically by a factor of 'a' do?

Back

Front

What is the effect of reflecting a graph across the x-axis?

Back

Front

How do you multiply complex numbers?

Back

To multiply complex numbers, use the distributive property (FOIL method). For example, for (a + bi)(c + di), the result is ac + adi + bci + bdi^2, where i^2 = -1.

Front

What is the product of (4 - 3i)(7 + 2i)?

Back

The product is 34 - 13i.

Front

What is the formula for the product of two matrices A (m x n) and B (n x p)?

Back

The product matrix C will have dimensions m x p, where C[i][j] = sum(A[i][k] * B[k][j]) for k from 1 to n.