What is the sum of the x-intercepts of the graph of the quadratic function $y=x^2-4x-12$ ?

Question

6103 views around the world

You can reuse this answer
Creative Commons License

Answer 1 · 2018-03-22T12:30:21

$4$

The sum of the roots of any quadratic is given by the formula:

$"sum of roots " = -b/a$

Therefore, in this case we have:

$"sum of roots " = -(-4)/1 = 4$

So the sum of the x-intercepts of the graph is $4$ .

Final Answer

What is the sum of the x-intercepts of the graph of the quadratic function y=x^2-4x-12y=x^2-4x-12?