I am answering this for points, so don’t know for sure but I think you might find 6.9
Answer:
Step-by-step explanation:
1. Translate (x, y) → (x + 1, y + 2)
The x coordinate will be translated 1 units horizontally and the y coordinate will be translated up 2 units vertically but they are still locate in the 1st quadrant
2. R (origin, 90° clockwise)
It still locate in the 1st quadrant because after rotating it will create an angle 90°
3. Translate (x, y) → (x + 2, y - 3)
The x coordinate will be translated 2 units horizontally but the the y coordinate will be translated down 3 units vertically, so:
- It will remain in the first quadrant.
- There is no size of the triangle will change.
Answer:
D I think hmm hmm hmm hmm hmm
Answer:
1) When x is 1, y is 4, and vice versa
2) When x is -6, y is 42, and when x is 7, y is 114
3) When x is -2, y is 2, and when x is 8, y is 42
Step-by-step explanation:
1)

which can be rearranged as
.
Substituting this lone y into the first equation, you get:

Move everything to one side:

Factor:



2)
which can be rearranged as
.

Let's use elimination this time and subtract the first equation from the second:

Factor:



3)


Let's set the two equations equal to each other through substitution:

Move everything to one side:

Factor:



Hope this helps!