Find the root of the polynomial equation.

$10x+9=0$

Find the root of the polynomial equation.

$9x-4=0$

Verify whether $x=\frac{1}{2}$ is the zero of the polynomial $p\left(x\right)=2x-1$.

Verify whether $x=1$ is the zero of the polynomial $p\left(x\right)=x^3-1$.

Verify whether $x=\frac{-b}{a}$ is a zero of the polynomial $p\left(x\right)=ax+b$.

Verify whether $x=4, x=-3$ are zeroes of the polynomial $p\left(x\right)=\left(x+3\right)\left(x-4\right)$.

Find the number of zeros of the following polynomial represented by the graph.

Find the number of zeros of the following polynomial represented by the graph.

Find the number of zeros of the following polynomial represented by their graph.