Answer:
y = 3x - 2
Explanation:
The equation of a line is y = mx + c where m is the slope of the line and c is the y-intercept. I will be calculating the slope of the line using the points (1, 1) and (2, 4).
Slope =
=

= 3
Based on the graph, the y-intercept is (-2) so the equation of the line is:
y = 3x - 2