this is the only coordinate that can be plugged in and still be true. therefore, this is the only value that intersect and creates a point.
from the first equation
: x=5-y. eqn 3
subtitute x in this equation
:- y= 5-y+1
2y = 6
subtitute y in eqn 3
christopher is 272,195 year old
no, her answer is not correct. we square the lengths of all sides and then determine whether the pythagorean theorem holds here:
9² + 15² = 306. this is not equal to the square of the longest side ( that square being 395. answer c is correct.
y = x + 1
If the tw...