The points (0,2) and (8,0)
(0-2)/(8-0) = -2/8 = -1/4 (slope)
You can tell y intercept is 2
Equation: y = -1/4x + 2
Just Distribute the squared to both g and a

When Distributing an exponent outside the parenthesis you multiply the exponents
Which results in...

X is greater than or equal to 0
y is greater than or equal to 0
True. In every single parallelogram, the diagnosis will bisect each other