Last year, the seventh - grade enrollment at main middle school was 612 students. this year ,the enrollment dropped to 489 students due to the opening of a new middle school . which best reflects the percent change in enrollment at main middle school from last year to this year?

we don't have enough info to solve this

d

step-by-step explanation:

by observation, we can see that the the graph is simply the graph of y = |x| that has been shifted 4 units downwards and 3 units to the left.

we can recognize in choice d :

y = | x + 3 |   - 4 (rewriting in general form)

y = | x - (- 3) |   - 4

the "-4 " term means   that the graph has been shifted by 4 units in the negative y direction

the "-3 " term means   that the graph has been shifted by 3 units in the negative x direction

this matches our observation of the graph described above.