How do you find the zero of $f(x)=9x+5$ ?

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Answer 1 · 2016-11-27T05:30:55

$x=-5/9$

A zero of a function $f$ occurs whenever $f(x)=0$ . Here, since $f(x)=9x+5$ , this means there is a zero when

$9x+5=0$

Solving this yields

$9x=-5$

$x=-5/9$

If we graph the linear function $f(x)=5x+9$ , the graph should cross the $x$ -axis at $x=-5/9$ , which is the point $(-5/9,0)$ .

How do you find the zero of f(x)=9x+5f(x)=9x+5?