Answer: A
Same as before, the functions are the same.
The first function is used for x ≤ 1, because of the closed circle.
The second function is used for x > 1, because of the open circle.
Vertical angle is when opposite angles meet in the middle of two intersecting lines (share the same vertex). They are equal to each other too.
Hope this helps! :)
Thx tahayahahataghaahtsyaha
The answer should be 9 because that’s the distance between -7 and 2
400mm long because 1cm=10mm