the sign is programmed to blink using absolute value inequalities of the form |x-a|≤b and |x-a|≥b Which of these formulas is used to program the sign for cars traveling either 5 mi/h above or below the 20 mi/h speed limit? What are the values of a and b? Explain.

a = 20,   b = 5

Step-by-step explanation:

| x-a| ≥ b

| x - 20 | ≥ 5

a = 20  ... car speed

b = 5   ... either 5 m/h above or lower than the limit speed 20 m/h

what is the information provided?

step-by-step explanation:

x is the total time in minutes for the free response

you are given number of questions as 15 - m and time per item as 8 minutes

to find x multiply the two givens together:

x = 8 * (15-m) = 8(15-m)