slope = rise over run = y/x
A (-1,3) slope = 3/-1 = -3
B (1,2) slope = 2/1 = 2
C (-3,-1) slope = -1/-3 = 1/3
2 lines need to be negative reciprocals in order to be a right triangle
negative reciprocal of -3 is 1/3
so this is a right triangle

2 <u>| 500</u>
2 <u>| 250</u>
5 <u>| 125</u>
5 <u>| 25</u>
5 <u>| 5</u>
1 <u>| 1</u>
Prime factorisation of <u>500 = 2 × 2 × 5 × 5 × 5 × 1</u>
_____
Hope it helps.
ᏒᎯᎨᏁᏰᎾᏯᏕᎯᏝᎿ2222
Wait I don’t really get it but if you mean the result it is -5x^2 + 5 tho
C is the answer to the question