Answer:
C. 10
Step-by-step explanation:
First, you plug in f(-1.8) into the original equation.
f(-1.8) = -2 (-1) + 8
The reason why I rounded -1.8 to -1 is because we're using the ceiling function, which means we need to round up (the brackets tell you in Edge but not on Brainly). Rounding up a negative number means we are going closer to 0. The next whole number close to -1.8 on the right will be -1.
Now solve:
f(-1.8) = 2 + 8 = 10
The answer is 10 if f(-1.8)
If you need more proof I took the quiz as well:
