Question 725986
The intercepts are when x =0 and when y =0.
y intercept
y=mx+b
if x=0 then y=b
b is the y intercept
You don't need to change the form
5x+3y=15
let x=0
3y=15
y=5
(0,5)

x intercept
5x+3y=15
let y=0
5x=15
x=3
(3,0)
now plot the graph 
using those two points