Answer:12
Step-by-step explanation:
Answer:
2. 6/-3 or -2 do all of them the same way. now find the answer and the slope will be the number with the x variable so this one is letter S.
Step-by-step explanation:
(x,y) (x1, y1)
(1,1 ) (-2,7)
(y1-y) / (x1-x) this is the formula
7-1 / -2 -1
6/-3
-2
If they are all in a line then we can find the equation of their line using: y = mx + b
First find m using points (2,5) and (3,3)
m = (5-3)/(2-3) = 2/-1 = -2
Now using (3,3) and m= -2 to solve for b:
3 = -2(3) + b
3 = -6 + b
9 = b
So our equation is y = -2x + 9
That is the solution for question b)
Now to find the mystery point, solve:
1 = -2x + 9
-8 = -2x
4 = x
So our mystery point is (4,1)
So for part a) the answer is k = 4
Answer:
x^2+8x+16
(x+4)^2
Step-by-step explanation:
x^2 +8x
Take the coefficient of the x term
8
Divide by 2
8/2 =4
Square it
4^2 =16
x^2+8x+16
We can factor it into
(x+8/2) ^2
(x+4)^2