Can someone me?

true or false?

if r is the correlation between two variables x and y then -r is the correlation between y and x.

i think this is true in theory, but i'm not sure.

13

step-by-step explanation:

distance formula is d=√(x2-x1)^2   +   (y2-y1)^2

sites:

hello,

as we don't know if g(x) is continue,

answer b

f(x)=2x²-8x+1=2(x²-4x+4)+1-8=2(x-2)²-7

vertex is (2,-7) ( a minimum since coefficient of x² is > 0)

h is the x-coordinate of the vertex

step-by-step explanation:

we have

in this function

the point represent the vertex of the function

so

h is the x-coordinate of the vertex

k is the y-coordinate of the vertex