Is it possible to have no prime numbers? and why or why not.

No its not possible because 2 3 5 7 11 13 17 19 2329 31 37 41 43 47 53 59 61 6771 73 79 83 89 97 101 103 107 109113 127 131 137 139 149 151 157 163 167173 179 181 191 193 197 199 211 223 227229 233 239 241 251 257 263 269 271 277281 283 293 307 311 313 317 331 337 347349 353 359 367 373 379 383 389 397 401409 419 421 431 433 439 443 449 457 461463 467 479 487 491 499 503 509 521 523541 547 557 563 569 571 577 587 593 599601 607 613 617 619 631 641 643 647 653659 661 673 677 683 691 701 709 719 727733 739 743 751 757 761 769 773 787 797809 811 821 823 827 829 839 853 857 859863 877 881 883 887 907 911 919 929 937941 947 953 967 971 977 983 991 997 are all prime  lol

In all honesty, there really is no “work” per say to show. mainly it’s just using the process of elimination. the question is asking which domain(s) would be the most appropriate for the function c(n). n is the number of observed vehicles so right away, 1, 2, and 3 can be eliminated.why? 1, 2 start in the negatives and therefore it is impossible to observe negative cars. so, #4 would be the best answer to the given problem.

Do you need with the x value for the minimum? its always between the two intercepts for a parabola