is the same as
. The 4s will cancel leaving you with
or
, your 3rd option.
Answer:
The answer is A. Axis of symmetry: x = –1; Vertex: (–1, 0); f(x) = –x2 – 2x – 1 or C. Axis of symmetry: x = –1; Vertex: (–1, –1); f(x) = –x2 – 2x – 1
Step-by-step explanation:
Vertex:
(−1,0)
Focus:
(−1,−1/4)
Axis of Symmetry:
x
=
−
1
Directrix:
y
=
1
4
x
y
−
3
−
4
−
2
−
1
−
1
0
0
−
1
1
−
4
Vertex:
(
−
1
/2
,
−
1
/2
)
Focus:
(−1/2,−5/8)
Axis of Symmetry:
x
=
−
1
2
Directrix:
y
=
−
3
8
x
y
−
2
−
5
−
1
−
1
−
1
2
−
1
2
1
−
5
2
−
13
Vertex:
(
−
1
,
0
)
Focus:
(
−
1
,
−
1
/4
)
Axis of Symmetry:
x
=
−
1
Directrix:
y
=
1
4
x
y
−
3
−
4
−
2
−
1
−
1
0
0
−
1
1
−
4
Vertex:
(
−
1
/2
,
9
/4
)
Focus:
(
−
1/2
,
2
)
Axis of Symmetry:
x
=
−
1
2
Directrix:
y
=
5
2
x
y
−
2
0
−
1
2
−
1
2
9
4
1
0
2
−
4
Answer:
x + 8 + 12 + 11 = 43
Step-by-step explanation:
The perimeter is the length of the 4 sections of fencing.
If x represents the fourth section and the perimeter is 43, then
x + 8 + 12 + 11 = 43, that is
x + 31 = 43 ( subtract 31 from both sides )
x = 12
The length of the fourth section is 12 ft
Answer: It is 26.27083333
26.27 if rounded
<u>Answer:</u>
<h2>(4, 6)</h2>
<u>Explanation:</u>
x = -4 + (12 - (-4))/2
x = -4 + (12+4)/2
x = -4 + 16/2
x = -4 + 8
x = 4
y = 2 + (10 - 2)/2
y = 2 + 8/2
y = 2 + 4
y = 6
the coordinates of the center of the circle: (4, 6)