Q31Multiple correct4 Marks16 Oct 2022Which of the following statements is (are) correct?Ay−20=3(x−10)2y-20=3(x-10)^2y−20=3(x−10)2 is an equation of a parabola whose vertex is at (10,20)(10,20)(10,20).Bp(x)=ax10+bx5+2x+8p(x)=ax^{10}+bx^5+2x+8p(x)=ax10+bx5+2x+8 where a=0a=0a=0 and b≠0b\ne0b=0, is a polynomial of degree 555.C5x+4y−1=05x+4y-1=05x+4y−1=0 and x4−y5=1\frac{x}{4}-\frac{y}{5}=14x−5y=1 are perpendicular to each other.D2x+7y+9=02x+7y+9=02x+7y+9=0 and 6x+21y+9=06x+21y+9=06x+21y+9=0 are parallel to each other.