Mathematics for IGCSE & O level - Graphs Of Functions (Section 5 - No. 1)
What would be a good approach to graphically solve the equation x^2 - 2x - 3 = 0?
Find the y-intercept
Sketch the parabola
Draw a vertical line.
Find the slope.
Explanation
The equation is a quadratic, hence drawing the parabola associated with the equation will provide a graphical solution.
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