The right triangle PQR is shown. y
6
P
Q
2
-6-4
2
46
-2
R
A dilation image of triangle PQR with a scale factor 4 and center at the origin is drawn. The image is triangle POR'.
What is the ratio of the length of P'Q to the length of O'R'?
O A 1:1
OB. 4:1
O c. 8:1
OD. 16:1

f

step-by-step explanation:

f

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guess at question:

a vertical line intersects the graph of g(x,y) = 0 at two points. what conclusion follows about the function f(x) implicitly defined by g(x,f(x)) = 0?

the domain of f(x) cannot include the x coordinate of any such vertical line.

informally, f(x) is not a function, and

g(x,y)=0 cannot be solved for y uniquely.

the relation r = {(x,y) such that g(x,y) = 0} is a function if

for all (a,b) ∊ r and (c,d) ∊ r, a=c implies b=d.

step-by-step explanation: