Define the term zero of a function in your own words

The zero of a function is the number you can substitute as x in order for the y to be 0.

Hope this helps!

Zero of a function is when plugged into a variable, it makes the function equal to zero. You can use the rational zero theorem to find all the zeros and possible roots of a polynomial equation.  

Answerfur trade;

Magma forms by partial melting of upper mantle and crust. partial melt means that only a fraction of the available material forms a melt, and that the remainder stays solid. the partial melt rises because of its lower density and ascends through he crust. this is so conclusive mean the answer would be magma igneous rocks or balistic magma.