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DD: Draggable Parabola Focus/Line
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Expression 5: "b" equals 1
b
=
1
negative 141
−
1
4
1
248
2
4
8
5
Expression 6: "c" equals 15
c
=
1
5
negative 384
−
3
8
4
338
3
3
8
6
Expression 7: "f" Subscript, 1 , Baseline equals negative 35
f
1
=
−
3
5
negative 150
−
1
5
0
300
3
0
0
7
Expression 8: "f" Subscript, 2 , Baseline equals 212
f
2
=
2
1
2
negative 224
−
2
2
4
424
4
2
4
8
focal point: left parenthesis, "f" Subscript, 1 , Baseline , "f" Subscript, 2 , Baseline , right parenthesis
f
1
,
f
2
Label:
equals
=
left parenthesis, negative 35 , 212 , right parenthesis
−
3
5
,
2
1
2
9
10
powered by
powered by
directx
focal point
"x"
x
"y"
y
"a" squared
a
2
"a" Superscript, "b" , Baseline
a
b
7
7
8
8
9
9
over
÷
functions
(
(
)
)
less than
<
greater than
>
4
4
5
5
6
6
times
×
| "a" |
|
a
|
,
,
less than or equal to
≤
greater than or equal to
≥
1
1
2
2
3
3
negative
−
A B C
StartRoot, , EndRoot
pi
π
0
0
.
.
equals
=
positive
+
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