4. determine through justification whether s is a subspace of v for the following a) v=r^2, s = {(x, x): x € r) b) v= m_2(r, s = {2x2 orthogonal matrices}

0=6x+2y+10 is equivalent to the simplified form: y= -3x - 5• parallel lines always have the same slope, different y intercept knowing this, we can say the slope, or m of the line parallel to y= -3x - 5 is -3.m= -3 hope this could !