Example of a simple function calculator w/ output to HTML Table

calc.js

let elM, elC, elP, elR, points;
let min = -10
let max = 10;
document.addEventListener("DOMContentLoaded",function(){
  elM = document.getElementById("m");
  elC = document.getElementById("c");
  elP = document.getElementById("p");
  elR = document.getElementById("result");
  document.getElementById("run").addEventListener("click",calculate);
});

function functionResolver(m, c, p) {
  let points = [];
  for(let x=min; x<=max; x++) {
    points.push( [x,m * ( x * x ) + c * x + p] )
  }
  return points;
}
function calculate() {
  points = functionResolver(+elM.value,+elC.value,+elP.value);
  //wipe result table, creating col headings
  elR.innerHTML = "<tr><th>x</th><th>y</th></tr>"; 
  points.forEach( coord => {
    elR.innerHTML += `<tr><td>${coord[0]}</td><td>${coord[1]}</td></tr>\n`;
  });
}

index.html

<input id="m" />
<input id="c" />
<input id="p" />
<button id="run">
Run Function
</button>
<table id="result">
</table>