question 1- The points P(3, -4), Q(9, -5), and R(5, -1) are the vertices of a triangle. What is the approximate length of side RQ? Round to the hundredth.

question 2- A line passes through the points (0, 4) and (2, -2). A second line passes through the points (1, -9) and (7, -7). At what point do the two lines intersect?

last option

step-by-step explanation:

given that δdef is right and isoceles,

assuming that side df is the hypotenuse means that de an ef are the other 2 sides that intersect at 90° and are of equal length.

because they are of equal length, we can say that they are congruent

because they intersect at 90°, their slopes must be opposite reciprocals.

only the last option satisfies these conditions.

over the argument its not good to fight.

i don't know

step-by-step explanation: