Q1Multiple correct3 Marks13 Apr 2025

Which of the following statements is (are) correct?

A

$y - 20 = -3(x - 10)^2$ is an equation of a parabola whose vertex is at $(10, 20)$.

B

$p(x) = ax^{19} + bx^5 + 2x + 8$ where $a = 0$ and $b \neq 0$, is a polynomial of degree $5$.

C

$-5x + 4y - 1 = 0$ and $\frac{x}{4} - \frac{y}{5} - 1 = 0$ are perpendicular to each other.

D

$2x + 7y + 9 = 0$ and $6x + 21y + 9 = 0$ are parallel to each other.