The first option reduces to 1 and the second one reduces to -1.
The answer should be if I am correct
h times 5.25
Y = 4x + 1....slope here is 4. A parallel line will have the same slope
y = mx + b
slope(m) = 4
(3,9)...x = 3 and y = 9
now we sub and find b, the y int
9 = 4(3) + b
9 = 12 + b
9 - 12 = b
-3 = b
so ur parallel equation is : y = 4x - 3
63/84 divided by 21/21
=3/4
or
63 divided by 84=0.75 which is the same thing as 3/4