Question

Help me please! Explain how you can use the graph of the quadratic function f(x) to solve the equation f(x)=0

Answer 1

Sample Response: The zeros of a quadratic function are the solutions of the related quadratic equation. If the graph of a quadratic function crosses the x-axis, there will be two real number solutions. If the graph of a quadratic function just touches the x-axis, there will be one unique real number, or double root, solution. If the graph of a quadratic function does not cross the x-axis, there will be no real number solution. Hope it helps! Thank you!

-Charlie

Answer 2

ok so: the graph of a function intersects the x-axis will be the roots of f(x) = 0. Because the coordinates of the point where it intersects the xaxis will be (x, 0). y will be 0. What you need to do is add 0 wherever x is for eample: when multiplying 3 and 0 you get 0 then subtract 2 and y would equal negative 2. I hope this helps you