Answer:
20. from y-axis,
(0,3)
from x-axis,
(8,0)
from, m = (y-y1) /(x-x1)
m = (0-3)/(8-0)
m = -3/8
y-y1 = m(x-x1)
y-0 = -3/8(x-8)
y = -3/8x + 3
21. from x-axis,
x = -2
x = k
where, k is any real number.
equation of the line is x = -2.
22. from y-axis,
y = -3
y = k
equation of the line is y = -3.
