The line is a straight line, therefore, we can employ the equation of a line given 2 points form.
We can pick any two points on the line,
I'll go with ( 0 , -1) and ( 5 ,5)
Inserting this into the equation, we can obtain;
As you can see, the line equation is y = (6/5)x - 1
The slope is 6/5 and the y-intercept is -1