Answer:
Given below.
Explanation:
using the formula :
y = mx + c ....where m is the slope and c is the y intercept
(a) if slope 1/3; y intercept = -1
y = x/3 - 1
(b) if slope -2/5; y intercept = 0
y = -2x/5 + 0
y = -2x/5
(c) if slope= -1; y intercept= 4
y = -1x + 4
y = -x + 4