Question

The equation of a line is x + 5y = 12. What is the y-intercept of the line

Answer 1

Simple...

remember isolate the variable...

x+5y=12

x+5y=12
-x

5y=12-x

Now divide y 5....

$\frac{5y}{5} = -\frac{x}{5} + \frac{12}{5}$

The y-intercept would be....  

$\frac{12}{5}$

Thus, your answer.