Are y = 1/4 -2 and y = 1/4 + 2 parallel?

The domain of a function can be represented by which one of the following options? o a. a set of output values o b. a set of f(x) values o c. a set of input values o d. a set of both input and output values

If f(x) = 3x2 - 2x+4 and g(x) = 5x + 6x - 8, find (f-g)(x).

Yvaries directly as x. y =90 when x=6. find y when x=13