# Can you solve a quadratic equation by graphing?

## Can you solve a quadratic equation by graphing?

Another way of solving a quadratic equation is to solve it graphically. The roots of a quadratic equation are the x-intercepts of the graph. Graph the equation. This could either be done by making a table of values as we have done in previous sections or by computer or a graphing calculator.

What is the shortcut to solve quadratic equations?

Formulating a Quadratic Equation

1. A quadratic equation ax2 + bx + c = 0 will have reciprocal roots, if a =c .
2. When a quadratic equation ax2 + bx + c = 0 has one root equal to zero, then c = 0.
3. When both the roots are equal to zero, b = 0 and c =0.

### How important is quadratic function?

In fact quadratic functions can be used to track to the position of any object that has been thrown, shot, or launched near the surface of the Earth. As long as wind resistance does not play a huge role and the distances are not too great, you can use a quadratic function to model the flight path.

Can a quadratic be a function?

In algebra, a quadratic function, a quadratic polynomial, a polynomial of degree 2, or simply a quadratic, is a polynomial function with one or more variables in which the highest-degree term is of the second degree.

## How do you make a quadratic equal zero?

The correct answer is m = −8 or 3. You can find the solutions, or roots, of quadratic equations by setting one side equal to zero, factoring the polynomial, and then applying the Zero Product Property. The Principle of Zero Products states that if ab = 0, then either a = 0 or b = 0, or both a and b are 0.

What is not a real solution?

If the discriminant is less than 0, the equation has no real solution. Looking at the graph of a quadratic equation, if the parabola does not cross or intersect the x-axis, then the equation has no real solution. And no real solution does not mean that there is no solution, but that the solutions are not real numbers.