Assume that T is a linear transformation. Find the standard matrix of T. T: set of real numbers R squaredℝ2 first reflects points through the line x 2 equals negative x 1line x2=−x1 and then reflects points through the line x 2 equals x 1line x2=x1.

Step-by-step explanation:

Thinking process:

We will need to test the different geometric transformations.

Let's see how this can be done:

Let the shear transformation be represented by the matrix S such that

Then, let the image be reflected by the reflection R, such that:

R = is reflected across the point

then the vector will be =

This is the mirror image.

Then it means that and

Thus, the standard matrix is given by:

dude   i don't even know. i've been trying for hours.

step-by-step explanation:

answer: first option i.e. 'a' is correct.

step-by-step explanation:

since we have given that

number of minutes to wrap a small gift box = 4 minutes

we need to find the number of gifts to be wrapped in 5 minutes

since there is a direct variation, as the number of minutes will increase with   number of gifts to be wrapped.

so, let the number of gifts to be wrapped in 5 minutes be x.

so, it becomes,

hence, first option 'a'   is correct.