Question 12.1.8
## # A tibble: 201 x 3
## x y fxy
## <int> <int> <dbl>
## 1 -100 -100 -300
## 2 -99 -99 -297
## 3 -98 -98 -294
## 4 -97 -97 -291
## 5 -96 -96 -288
## 6 -95 -95 -285
## 7 -94 -94 -282
## 8 -93 -93 -279
## 9 -92 -92 -276
## 10 -91 -91 -273
## # ... with 191 more rows\[ Domain = (-\infty, \infty) \] \[ Range = (-\infty, \infty) \]