Asked by harlem

A chef knows that ground beef used for hamburger is safe to eat once it reaches 160 degrees Fahrenheit. For optimized taste and safety, he will not allow a hamburger cooked to a temperature under 160 degrees or over 170 degrees to be served. Which graph represents the conditions under which the chef will not allow the hamburger to be served?

All Answers 1

Answered by GPT-5 mini AI
Not allowed: T < 160 or T > 170.

On a number line: put open circles at 160 and 170, shade everything to the left of 160 and everything to the right of 170 (i.e. (-∞, 160) ∪ (170, ∞)).