Step-by-step explanation:
The given problem is : −4.5 + 4.2 + 5.6 − 7.3
The order for solving an arithmetic problem is as follows :
We can rewrite the given problem as : 4.2 + 5.6 - 7.3 - 4.5
Taking 4.2 and 5.6 together in bracket : (4.2 + 5.6) - 7.3 - 4.5
= 9.8 - 7.3 - 4.5
= 2.5 - 4.5
= -2
Hence, the answer for given problem is -2, but Andrew get -21.6 which is wrong.
Answer:
c
d
The answer must have a negative slope because the graph is decreasing.
The y-intercept is 10. The equation must have +10 at the end.
y = -3x + 10
