A consistent system.
A "system of equations" implies that there is more than one equation.
y = 2x + 1 IS a linear equation!
A linear equation.
no
No, it is not.
Yes, a linear equation in t.
In one word 'NO' Since it is and 'x^(2)' term, this will make a parabolic curve, not linear (straight line).
Yes, y = 4x + 7 is a linear equation.
It is the linear equation of a straight line.
Yes, it is a linear straight line equation.
yes it is!
Yes.