Question 2 - Identifying parallel/perpendicular pairs from equations Practice | Prasnya
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Parallel and Perpendicular Lines - Parallel and Perpendicular...
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Identifying parallel/perpendicular pairs...
Question 2
00:00
Est. 2 min
Marks:
+4.00
0.00
Which of the following statements is (are) correct?
Multiple correct
Medium Difficulty
16 October 2022
A
y
−
20
=
3
(
x
−
10
)
2
y-20=3(x-10)^2
is an equation of a parabola whose vertex is at
(
10
,
20
)
(10,20)
.
B
p
(
x
)
=
a
x
10
+
b
x
5
+
2
x
+
8
p(x)=ax^{10}+bx^5+2x+8
where
a
=
0
a=0
and
b
≠
0
b\ne0
, is a polynomial of degree
5
5
.
C
5
x
+
4
y
−
1
=
0
5x+4y-1=0
and
x
4
−
y
5
=
1
\frac{x}{4}-\frac{y}{5}=1
are perpendicular to each other.
D
2
x
+
7
y
+
9
=
0
2x+7y+9=0
and
6
x
+
21
y
+
9
=
0
6x+21y+9=0
are parallel to each other.
