A(x) = 3x - 12
b(x) = x - 9
a(b(x)) = a(x - 9) = 3(x - 9) - 12 = 3x - 27 - 12 = 3x - 39
a(b(x)) = 3x - 39
Answer:
Its the first answer choice, basically just plug 3a +1 for a and solve
Answer:
Step-by-step explanation:
Just trying to get points
Answer:
- nearsighted: A, C, E
- farsighted: B, D
- most nearsighted: E
- most farsighted: D
Step-by-step explanation:
Since the questions are about which numbers are positive or negative and which have the largest magnitude, it is convenient to arrange them in order from least to greatest:
-3.00 (E), -2.25 (A), -1.50 (C), 1.00 (B), 3.25 (D)
Nearsighted patients are those with negative prescriptions: E, A, C.
Farsighted patients are those with positive prescriptions: B, D.
The most nearsighted patient has the most negative prescription: E
The most farsighted patient has the most positive prescription: D
