Put in slope intercept/function form.
- X + 5Y = 5
5Y = X + 5
Y = 1/5X + 1
----------------------now, zero out variables in turn
1/5X + 1 = 0
1/5X = - 1
X = - 5
----------
Y = 1/5(0) + 1
Y = 1
-------
(- 5, 1)
----------intercepts
X intercept: -5 Y intercept: +3
x-intercept | -10 y-intercept | 4 slope | 2/5 = 0.4
(-5, 2)
80 = 3y + 2y + 4 + 1 80 = 5y + 5 80 - 5 = 5y + 5 - 5 75 = 5y 75 / 5 = 5y / 5 15 = y
It is y = -7
5
-3/5
The x-intercept is where y = 0 → 6x + 5(0) - 3 = 0 → 6x = 3 → x = 0.5 The y-intercept is where x = 0: → 6(0) + 5y - 3 = 0 → 5y = 3 → y = 0.6
3y+2y+4+1=80 5y+5=80 5y=80-5 5y=75 y=15
8 + 5y = 18 Therefore, 5y = 10 y = 10/5 y = 2
5y + x = 0 subtract 5y from each side, then x = -5y
Y=30