Hello!
This triangle is currently located in Quadrant 1. If it is rotated 90 degrees counter-clockwise around the origin, it will end up in Quadrant 2. The formula for this is seen below.
(x,y)⇒(-y,x)
We will do this to each point and get our final points.
(4,4)⇒(-4,4)
(4,1)⇒(-1,4)
(2,1)⇒(-1,2)
Therefore, the final points of our rotated triangle are (-4,4), (-1,4) and (-1,2).
I hope this helps!
Divide 42 by 2 and get 21.
Answer:
(x+2) ^2 =11
Step-by-step explanation:
x^2+4x=7
To complete the square, take the coefficient of the x term, 4
Then divide by 2, 4/2 =2
Then square it 2^2 =4
Add that to both sides
x^2 +4x+4 = 7+4
The left hand side can be rewritten as (x+b/2) ^2 where b is the coefficient of the x term
(x+2) ^2 =11