Midterm i legit don’t understand this stuff.

1. (5,-8)

2. (7, -11)

3. 7 lines

4. (2,-8)

5. x = 15

Step-by-step explanation:

1.  for translation over y=x you need to switch what is negative and what is positive

2. You add whatever number is said to be added to X and whatever number is said to be added to Y.

3. A regular heptagon has 7 equal sides so it has 7 lines of symmetry.

4. For over the x-axis you make the y negative (or if it is already negative you make it positive) you do the opposite for over the y-axis

5. When you have a mid-segment you take one side, 9 and 6, and you divide 9 by 6. You get 1.5, you then take 1.5 and multiply it by 10, that leaves you with 15

I hope I helped!

according to the triangle sum theorem, all the angles in a triangle must add up to 180 degrees. if we know one angle is already 90, we do 180-90=90. the other 2 angles must add up to 90, exactly.

step-by-step explanation: