Unit Test — Unit test Answers

On a coordinate plane, point B(–6, 1) is translated to (–3, –2). Indira uses these steps to find a rule to describe the translation.Step 1Substitute the original coordinates and the translated coordinates into :Step 2Write two equations:Step 3Solve each equation:Step 4Write the translation rule:Which corrects Indira’s first error?

If the measure of angle 2 is and the measure of angle 4 is , what is the value of x?

Parallel lines r and s are cut by two transversals, parallel lines t and u. Which angles are alternate exterior angles with angle 11?

A teacher asks students to determine the accuracy of this statement.A reflection over the x-axis and then over the y-axis results in the same transformation as a 180 rotation about the origin of the original figure.Kwame’s explanation of the accuracy of the statement is shown below.Step 1: Choose the vertices of a pre-image: (1, 2), (1, 4), (2, 3). Step 2: Reflect the pre-image over the x-axis: (1, –2), (1, –4), (2, –3).Step 3: Reflect the figure from step 2 over the y-axis: (–1, 2), (–1, 4), (–2, 3).Step 4: Rotate the pre-image 180: (–1, –2), (–1, –4), (–2, –3).Step 5: Compare the reflected figure to the rotated figure. The vertices are not located in the same place, therefore the statement made by the teacher is inaccurate.Which best explains Kwame’s solution?

Which graph shows the image of the triangle reflected across the line of reflection shown?