X-intercept Y-intercept

X-intercept Y-intercept

$x$-intercepts when $y=0$ $y$-intercepts when $x=0$ Example 1 Sketch the graphs of $y=x^2+x-2$ by stating $x$- and $y$-intercepts. Show Solution $x$-intercepts when $y=0$ \( \begin{align} \displaystyle x^2+x-2 &= 0 \\ (x+2)(x-1) &= 0 \\ x &= -2, 1 \\ \end{align} \) $y$-intercepts when $x=0$ \( \begin{align} \displaystyle y &= 0^2+0-2 \\ &= -2 \\ \end{align} [...]