Use graphs to solve equations

Solving equations using graphs


Find the roots or solve f(x)=0 as an alternative way of asking for a solution to the quadratic equal to zero. Solve quadratics of type e.g. x²+2x+2 = 4 after having drawny = x²+2x+2 or y = x2+2x+1 or y = x²+x-3 by drawing a linear graph or reading off points. Also solve cubics, reciprocals and exponentials equations with the aid of graphs
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