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Given that y = 7 + 3x − x2, complete the table below.
0
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asked
Aug 16, 2021
in
Mathematics Form 3
by
anony mous
Given that y = 7 + 3x − x
^{2}
, complete the table below. (2mks)
x
−3
−2
−1
0
1
2
3
4
5
6
y
−11
7
−11
On the grid provided and using a suitable scale draw the graph of
y = 7 + 3x − x
^{2}
.
On the same grid draw the straight line and use your graph to solve the equation
x
^{2}
- 4x – 3 = 0.
Determine the coordinates of the turning point of the curve.
quadratic expressions and equations
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1
Answer
0
votes
answered
Aug 16, 2021
by
anony mous
x
−3
−2
−1
0
1
2
3
4
5
6
y
−11
−3
3
7
9
9
7
3
−3
−11
y=7+3x−x
^{2}
0= −3−4x+x
^{2}
∴
x
0
2
y
4
2
(1.5, 9.8)
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