Sketch the graph of $y=(3+x)(x-2)$. Indicate clearly the values where the graph crosses the $x$-

Question

Sketch the graph of $y=(3+x)(x-2)$. Indicate clearly the values where the graph crosses the $x$- and $y$-axes. Write down the equation of the line of symmetry of the curve. Write down the value of $h$, given that the range of the graph is $y\ge h$.

Accepted Answer

(ii) $x=-\frac{1}{2}$ (iii) $-6\frac{1}{4}$

Sketching and Analysing a Quadratic Graph in Factorised Form with Range Identification

Sketching and Analysing a Quadratic Graph in Factorised Form with Range Identification

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