Answer: y = mx + c.
- A y = mx + c
- B ax + by + c = 0
- C x = my + c
- D y = c/x
Correct answer: A. y = mx + c
Explanation: y = mx + c, where m is slope and c is y-intercept.
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.