SOLUTION: Looking at the graph of y = x^2 -13 x + 30, solve the inequality x^2 -13 x + 30 > 0. Express your answer using interval notation. x:

Algebra ->  Graphs -> SOLUTION: Looking at the graph of y = x^2 -13 x + 30, solve the inequality x^2 -13 x + 30 > 0. Express your answer using interval notation. x:       Log On


   

Question 945344:
Looking at the graph of y = x^2 -13 x + 30, solve the inequality x^2 -13 x + 30 > 0. Express your answer using interval notation.
x:
Found 2 solutions by josgarithmetic, MathTherapy:
Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
%28x%2B3%29%28x-10%29%3E0

Critical values are at -3 and +10. Those are the roots or zeros of the quadratic expression. These form THREE intervals on the x-axis, so TEST EACH OF THE INTERVALS!

You know you have y as a parabola, and you want to know for which x-values is y%3E0.

SOLUTION: Set of points ( -infinity,-3 ) AND ( 10, infinity )

Answer by MathTherapy(10552) About Me  (Show Source):
You can put this solution on YOUR website!

Looking at the graph of y = x^2 -13 x + 30, solve the inequality x^2 -13 x + 30 > 0. Express your answer using interval notation.
x: 
(- ∞, 3) U (10, ∞)     

You can do the check!! 

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