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Mathematics

Grade-11

Easy

Question

Determine the solutions of the quadratic equation $x squared minus 8 x plus 12 equals 0$ by inspecting the graph. Give answers correct to 1 decimal place where appropriate.

x = 2, x = 6
x = 1, x = 4
x = 3, x = 5
x = 2, x = 7

The correct answer is: x = 2, x = 6

The graph cuts the x - axis at x = 2 and x = 6, which is the solution of the quadratic equation.

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