Their error is in step 2. They added three to each number in (3y+8) instead of distributing it with multiplication. The correct step would be 9y-24=10y+3
Step-by-step explanation:
part A
all listed features (A - F) are correct and to be selected.
part B
the average rate of change is
(f(x2) - f(x1)) / (x2 - x1)
so,
(f(0) - f(-2)) / (0 - -2) = (2 - 0) / (0 + 2) = 2/2 = 1
So first simplify
(12^5)^6=(12^5)(12^5)(12^5)(12^5)(12^5)(12^5)
remember
if
(x^n)^m=x^nm
so
(12^5)^6=12^(5 times 6)=12^30
so 12^30=12^a
so a=30
0.13 0.19 0.3 and 0.31 just in case you didnt know 0.3 =.030
