Hey there!!
Slope-intercept form:
y=mx+b
In this form, 'm' is the slope and 'b' is the y-intercept.
Let's take two points.
(0,4) and (1,7)
With these points, we know the y-intercept is 4.
Now, we will have to find the slope.
Slope = y-y/x-x
Slope = 7-4/1-0
Slope = 3/1
Slope = 3
Hence, the slope intercept equation would be:
y = 3x + 4
Hope my answer helps!!