2
-2
-4
-6
-8
5
10
15
20
-5
-10
-15
-20
Which of the following is the equation of the graph shown?
y
=
−
1
x
2
+
6
x
+
7
\displaystyle {y}=-{1}{x}^{{2}}+{6}{x}+{7}
y
=
−
1
x
2
+
6
x
+
7
y
=
−
1
x
2
−
6
x
−
7
\displaystyle {y}=-{1}{x}^{{2}}-{6}{x}-{7}
y
=
−
1
x
2
−
6
x
−
7
y
=
+
1
x
2
+
6
x
−
7
\displaystyle {y}=+{1}{x}^{{2}}+{6}{x}-{7}
y
=
+
1
x
2
+
6
x
−
7
y
=
+
1
x
2
−
6
x
+
7
\displaystyle {y}=+{1}{x}^{{2}}-{6}{x}+{7}
y
=
+
1
x
2
−
6
x
+
7
y
=
−
1
x
2
−
6
x
+
7
\displaystyle {y}=-{1}{x}^{{2}}-{6}{x}+{7}
y
=
−
1
x
2
−
6
x
+
7
y
=
+
1
x
2
+
6
x
−
7
\displaystyle {y}=+{1}{x}^{{2}}+{6}{x}-{7}
y
=
+
1
x
2
+
6
x
−
7
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