Answer: y = 2x + 3.
- A y = 2x + 3
- B y = 3x + 2
- C y = 2x − 3
- D x = 2y + 3
Correct answer: A. y = 2x + 3
Explanation: Using y = mx + c with m = 2 and c = 3 gives y = 2x + 3.
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.