I have zero idea how to do this help pls

B) 3x² + 12x + 19

H) f(x) = 4

Step-by-step explanation:

y = 3(x + 2)² + 7 = 3 ( x² + 4x + 4) + 7 = 3x² + 12x + 12 + 7 = 3x² + 12x + 19

f(x) = 4

x=1 f(1) = 4

x=3 f(3) = 4

x=7 f(7) = 4

x=12 f(12) = 4

i don't know, but that looks pretty bad. my school passed us unless we failed in all the subjects, but idk abt ur school's rules.

copyright potato 2019.