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Complete the table below for the function y = 6 + x – x2.
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asked
Jul 23, 2021
in
Mathematics Form 3
by
anony mous
Complete the table below for the function y = 6 + x – x
^{2}
.
x
−4
−3
−2
−1
0
1
2
3
4
5
y
−14
6
4
−6
On the grid provided below, draw the graph of y = 6 + x – x
^{2}
for −4 ≤ x ≤ 5. (3marks )
On the same axes draw the graph of y = 2 – 2x.
From the graphs, find the values of x which satisfy the simultaneous equations.
y = 6 + x – x
^{2}
y = 2 – 2x.
Write down and simplify a quadratic equation in the form ax2 + bx + c = 0 which is satisfied by the values of x where the two graphs intersect.
quadratic expressions
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1
Answer
0
votes
answered
Jul 23, 2021
by
anony mous
x
−4
−3
−2
−1
0
1
2
3
4
5
y
−14
−6
0
4
6
6
4
0
−6
−14
Graph
x = −1 or x = 4
(x + 1 ) ( x – 4) = 0
x
^{2}
– 4x + x – 4 = 0
x
^{2}
– 3x – 4 =0
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