Answer:
The direction of relationship changes at least once.
Step-by-step explanation:
Curvilinear relationship is a relationship between two variables where if one variable increases the other variable also increases but up to certain point after which one variable increases and other decreases. This type of relationship is referred as non monotonic function.
Let this number be x. Then its reciprocal is 1/x. And the sum of them is x+1/x.
In order to find the least possible sum, we can derivate the sum and set it to zero.
Derivation of x+1/x gives us,
. Setting it to zero, we are going to solve the following equation:
And solving it, we obtain x=1 and x=-1. Since we were looking for a positive number, the answer is 1
Use pythagorena theorme
D=
NOTE: x1 and x2 means the first x and second x, not x^1 and x^2
points given are
(1,1)
(5,6)
x1=1
y1=1
x2=5
y2=6
D=
D=
D=
D=
6.403
answer is B