Question

If f(x) is parallel to the line y = 2 x+ś, which function could be f(x)?

Answer 1

f(x) = 2x + b, b - any real number except ś.

Explanation:

The slope-intercept form of an equation of a line:

`y=mx+b`

m - slope

b - y-intercept

Parallel line have the same slope.

Therefore the line parallel to the given line y = 2x + ś has equation

y = 2x + b, where b is any real number except ś.