Question

is 3x-4x=20 a linear equation yes or no and explain

Answer 1

No, because simplfied it would be x = -20. It would be a vertical line that crosses the point (-20,0). It isn't a linear equation because it doesn't have a slope, m.

Answer 2

It is a linear equation with an undefined slope.

Answer 3

But it doesn't contain a y intercept so therefore it can't be linear correct ?

Answer 4

A y-intercept isn't necessary for a line in the plane. In order for it to be line and not a line segment, it must cross a axis, but not necessarily both.

Answer 5

The word linear implies the notion of a line. And so if this equation represents a line in the plane, then it is a linear equation.

Answer 6

ok thanks