The answer must be C. the diagonals of a kite are perpendicular.
Quick note. perpendicular lines always form a 90° angles
For this case we have that by definition, the equation of a line in the slope-intersection form is given by:
Where:
m: Is the slope
b: Is the cut-off point with the y axis
According to the data of the statement we have two points through which the line passes:
We found the slope:
Thus, the equation is of the form:
We substitute one of the points and find "b":
Finally, the equation is:
Answer:
Flat and idk the other one
I believe 90 but i can be wrong