Answer: 6.
- A 6
- B 12
- C 8
- D 10
Correct answer: A. 6
Explanation: Area = (1/2)|x1(y2-y3) + x2(y3-y1) + x3(y1-y2)| = (1/2)|0+3(0-0)+0(0-0)| hmm. Area = (1/2) × base × height = (1/2) × 3 × 4 = 6.
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.