M(6.–8) is the midpoint of AB. The coordinates of point A are (1.–3). What are the coordinates of B? Write your answer as an ordered pair in the form (x, y).

(11, -13)

Step-by-step explanation:

(1 + x)/2 = 6

1 + x = 12

x = 11

(-3 + y)/2 = -8

-3 + y = -16

y = -13

∠cbe and ∠deb are same-side interior angles.

i took the test

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: