18. Write an equation of a line whose graph is parallel to the graph of y = 3x - 10.

The slope of that line is 3 (because the coefficient of x is 3).

Any line parallel to that line has the same slope of 3, but a different y-intercept.

The following lines are all parallel to the given line:

y = 3x - 2

y = 3x - 1

y = 3x

y = 3x + 1

y = 3x + 2

etc.

Being parallel means by definition that the lines will never cross. That being said, the second line needs to be the same slope. The y-int won’t matter as long as it is not identical to the first equation.

y=mx+b

m is slope

So one possible answer is ...

y = 3x - 2

y = 3x + 5

y = 3x + 7

All these lines are parallel with the same slope