For the given value of f(x) and values of L, c, and epsilon>0, find the largest open interval about c on which the inequality absolute value of f(x)-L<epsilon holds.

f(x)=x^2 L=49 c=-7 epsilon=0.4

here's the work I did (sorry this is my first post and I couldn't figure out how to do special characters or absolute value symbols)

x^2 -49<.4

48.6<x^2<49.4

6.9713<x<7.0285

So I thought my interval would be (6.9713,7.0285) but the answer was supposed to be (-7.0285,6.9713)

Where did I go wrong?

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