If you are looking at a graph of a quadratic equation, how do you determine where the solutions are?

Answer 1

a quadratic equation is of the form

y = a x^2 + bx + c

When looking for a "solution" to a quadratic equation, we are often looking for "roots", meaning the values of x for which y=0

On the graph, the roots are where the graph cuts the x axis (where y = 0).

In a "system", the solution is where two graphs intersect. So if you have a quadratic equation and another equation (for example, a line), then the solutions are where the line crosses the curve.

Answer 2

The graph is the solution. All correct answers fall on that line. Important points are where it intersect the x and y axis. X=0; y=0. Others inportant points are where the slope is zero and undefined.