Question

Show that |x^2 -16| is less than or equal to 9

Answer 1

who said that?

Answer 2

One of Jon Rogawski's problem in his AP calculus book. Problem #30b.

Answer 3

i think your question is find x for |x^2-16|<=9

Answer 4

or you are talking about some specific curve like an ellipse or something

Answer 5

Section 1.1 btw if you have it. it's just a normal equation. So how would i find x? Would i move 16 over and take the root of 25 and 7? ( so like this root7<=x<=5?)

Answer 6

Yup, your answer is correct, root7<=x<=5

Answer 7

thanks!

Answer 8

yw