I think it is 6 and half you are supposed to multiply the scale ft and the model inches
( −3 , 4 ) and ( −6 ,−1 )
midpoint:
x = (x1+x2)/2 = (-3 - 6)/2 = -9/2 = − 4.5
y = (y1+y2)/2 = (4 - 1)/2 = 3/2 = 1.5
Answer
Midpoint M(− 4.5, 1.5)
The correct answer is y= x^2-16
Y = x^2 . . . (1)
y = -x + 2 . . . (2)
Putting (1) into (2) gives,
x^2 = -x + 2
x^2 + x - 2 = 0
x^2 - x + 2x - 2 = 0
x(x - 1) + 2(x - 1) = 0
(x + 2)(x - 1) = 0
x = -2 or x = 1
y = (-2)^2 or y = (1)^2
y = 4 or y = 1
Solution is (-2, 4) and (1, 1)
Here is the answer. From Socratic. The solution is x=40/3
