Answer: b
<u>Step-by-step explanation:</u>
NOTE:
- Hypothesis: "if" part of the sentence
- Conclusion: "then" part of the sentence
hypothesis : If <u>two lines intersect at right angles</u>
conclusion: then <u>the two lines are perpendicular</u>
13, I believe? Sorry if you get it wrong
The answer would be y=-3/4x-3
The answer for number A would be 1/3