APFIVE Simplifying Rational Functions With Holes
Let $$f$$ be the rational function defined by $$f(x) = \frac{(x + 4)(x - 2)}{(x + 4)(x + 1)}$$. Which of the following is an equivalent representation of the function $$f$$?
A
$$f(x) = \frac{x - 2}{x + 4}$$ for $$x \neq -1$$
B
$$f(x) = \frac{x + 4}{x + 1}$$ for $$x \neq -4$$
C
$$f(x) = \frac{x - 2}{x + 1}$$ for $$x \neq -1$$
D
$$f(x) = \frac{x - 2}{x + 1}$$ for $$x \neq -4$$
Question Leaderboard
| Rank | |||||
|---|---|---|---|---|---|
| #1 | mahmoudjibrin08 | 6 | 8 | 3m 15s | 385 |
| #2 | shahem.shoubaki1 | 2 | 2 | 0m 50s | 150 |
| #3 | fahidalia08 | 2 | 3 | 0m 44s | 146 |
| #4 | nkatikitala2011 | 2 | 3 | 0m 51s | 139 |
| #5 | kimmimi0412 | 1 | 1 | 0m 00s | 100 |
| #6 | danurizayo | 1 | 1 | 0m 10s | 90 |
| #7 | gg33211 | 1 | 1 | 0m 15s | 85 |
| #8 | ethan185183 | 1 | 1 | 0m 15s | 85 |
| #9 | meenakshiswapna2296 | 1 | 1 | 0m 26s | 74 |
| #10 | andrew.hsia9 | 1 | 1 | 0m 30s | 70 |
Items per page:
10
1 – 10 of 26