Determine the value(s) for which the rational expression −9(2,3)+8 divide −12(2,3)+11 is undefined.

Answer this question! 30 points and brainliest! only if you know the answer.

Dexter read 11 science fiction books and 5 history books. lena read 9 science fiction books and 4 history books. compare the students’ ratios of science fiction books to history books. 1. determine the ratios’ form:    science fiction books to history books 2. write the ratios as fractions:    dexter: 115; lena: 94 3. rewrite with a common denominator. 4. compare. 5. answer the question. determine which shows the correct comparison of the ratios for this problem.

What is the effect on the graph of the function f(x)=x when f(x) is replaced with -f(x)+4