Exit task
421h Draw a line to determine approximate solutions to a quadratic equation requiring rearrangement.
Difficulty
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The graph of
y
=
−
3
x
2
+
4
x
+
4
is drawn below.
powered by
"x"
x
"y"
y
"a" squared
a
2
"a" Superscript, "b" , Baseline
a
b
7
7
8
8
9
9
over
÷
funcs
(
(
)
)
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
−
ABC
StartRoot, , EndRoot
pi
π
0
0
.
.
equals
=
positive
+
Draw a suitable line to solve
−
3
x
2
+
3
x
=
0
x
≈
x
≈
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e
π
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a
2
a
◻
<
>
≤
≥
(
)
!
θ
7
8
9
◻
/
◻
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4
5
6
×
1
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−
0
.
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sin
cos
tan
sin
−
1
cos
−
1
tan
−
1
\cosec
sec
cot
sinh
cosh
tanh
ln
log
a
∫
∫
b
a
Σ
b
a
|
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,
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Rubber
Clear All
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Grid Dots
Isometric (H)
Isometric (V)