SOLUTION: If you are looking at a graph of a quadratic equation, how do you determine where the solutions are?
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Question 533908: If you are looking at a graph of a quadratic equation, how do you determine where the solutions are?
Found 2 solutions by solver91311, fcabanski:
Answer by solver91311(24713) (Show Source): You can put this solution on YOUR website!
A quadratic equation doesn't have a graph, unless you count the two places on the number line that represent the solutions (presuming there are any). A quadratic function has a graph that has roots or zeros where the value of the function is zero, if the function has real number zeros.
John
My calculator said it, I believe it, that settles it
Answer by fcabanski(1391) (Show Source): You can put this solution on YOUR website!
Check my profile and contact me for one to one online tutoring.
Look at the x-intercepts. In other words, where the graph crosses the x (horizontal) axis, and where y=0.
This only works for quadratics with simple solutions. For example, if the solution is x= -4 + sqrt(7), unless the point is labeled, it will only be possible to estimate the value shown on the graph.
The solutions can also be imaginary.
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