Step-by-step explanation:
The rule for a 90 degree counterclockwise is
(x,y) -> (-y,x)
so
C(-1,2) -> C'(-2,-1)
D(3,5) -> D'(-5,3)
E(1,2) -> E'(-2,1)
Answer:
3
Step-by-step explanation:
Given
f(x) = , then
f(12) = = = ± 3
There are 2 values 3 and - 3
The positive value of f(12) is + 3
Answer:
∠ 2 = 70°
Step-by-step explanation:
110° and ∠ 1 are corresponding angles and congruent, thus
∠ 1 = 110°
∠ 1 and ∠ 2 are adjacent angles and are supplementary, thus
∠ 2 = 180° - ∠ 1 = 180° - 110° = 70°
Answer:
(3,2)
Step-by-step explanation:
If you have any questions about the way I solved it, don't hesitate to ask me in the comments below =)