Answer:
y = 2/3x +4
Explanation:
The line crosses the y-axis at y=4, so that value is the y-intercept.
It increases by 4 grid squares for each 6 grid squares to the right, so the slope is ...
m = 4/6 = 2/3
In slope-intercept form, the equation is ...
y = mx +b . . . . line with slope m and y-intercept b
Your line has equation ...
y = 2/3x +4