Which biconditional statement is valid? A quadrilateral is a square if and only if its diagonals bisect each vertex . Two polygons are congruent if and only if all corresponding parts are congruent . A quadrilateral is a rectangle if and only if its diagonals bisect each other.

c. y = 1/4 x + 5

step-by-step explanation:

first, put the equation of the line on the graph into slope-intercept form

(y = mx + b):   y = -4x + 8

second, a perpendicular line has to have "an opposite/reciprocal slope" to the original slope. so, find the "m" value in your original equation (it's -4, right? )

original slope: m = -4   perpendicular slope: change the sign to its opposite and find the reciprocal ("flip" the number)

new slope is now positive (b/c the original slope was negative 4), and it's 1/4 (not the original slope of 4 or 4/1)

answer by yourhope:

hi! : )

a farmer that lived in ancient egypt would most likely be barried in the sand, in the desert!

: )

3 qrs + 3/2 xy hope this : /

step-by-step explanation:

the correct answers are 1, 2, 4, and 5! i just got it right!