Please explain in an easy way how to evaluate the following.

Hi there!

The | | signs mean that we must make the value positive, so:

(a)  | -5 + 9 | =

Solve for the inside:

| 4 | = 4

(b)

| -5 | + 9 =

Make the value positive:

5 + 9 = 14

the red lines denote the population of the bacteria after 35 hours. that would be 2,409.24. the y-intercept is the blue line which is 800 because that is the starting point. the equation used to make the graph is 800(1.032)^h, where h is the number of hours.

step-by-step explanation: