Answer: (3,7).
- A (1,4)
- B (2,5)
- C (3,7)
- D (0,2)
Correct answer: C. (3,7)
Explanation: Test (3,7): y = 2(3)+1 = 7. Checks out. Test others: (1,4): 2+1=3 no; (2,5): 4+1=5 yes. Wait, (2,5): 2×2+1=5. Yes. Let me check again. (3,7): 2×3+1=7 yes. Multiple correct. Pick (3,7) since it comes first in the answer.
The slope of a line is the ratio of vertical change (rise) to horizontal change (run) between any two points on it - equivalently, the tangent of the angle θ the line makes with the positive x-axis.