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Complete the table of values for y=-x^2+4x+3 and draw the graph.
Use your graph to estimate the roots of the function to 1 d.p.
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Use your graph to estimate the roots of the function to 1 d.p.
| x | -5 | -4 | -3 | -2 | -1 | 0 | 1 | 2 | 3 | 4 | 5 |
| y | -42 | -29 | -18 |
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The roots of the function are 4.6 and -0.6
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Table of values for y=-x^2+4x+3| x | -5 | -4 | -3 | -2 | -1 | 0 | 1 | 2 | 3 | 4 | 5 |
| y | -42 | -29 | -18 | -9 | -2 | 3 | 6 | 7 | 6 | 3 | -2 |
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