Express 144 as the product of the prime factors

144 ends in an even number, so we know we can divide it by 2.

144 = 2 × 72

Let's keep going. 72 can be divided by 2 again.

144 = 2 × 2 × 36

And again...

144 = 2 × 2 × 2 × 18

And again!

144 = 2 × 2 × 2 × 2 × 9

And 9 equals 3 times 3.

144 = 2 × 2 × 2 × 2 × 3 × 3

Since we have a bunch of numbers multiplying into themselves, we should use exponents to write this.



(The little number above, called an exponent, tells you how many times to multiply the number by itself.)

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.