Good evening ,
Answer:
x²-9x+12 = (x - (9/2))²- (33/4)
Step-by-step explanation:
Look at the photo below for the details.
:)
Y=4x-5
Y=3x+4
Plug in each choice:
(9,31)
31=4(9)-5 ——— 31=36-5 TRUE
31=3(9)+4——— 31=27+4 TRUE
(9,31) must be the answer but let's try the other choices to be sure...
(-9,31)
31=4(-9)-5 ——— 31=-36-5... =-41 FALSE
(-9,-31)
-31=4(-9)-5 ——— -31= -36-5...=-41 FALSE
(9,-31)
-31= 4(9)-5 ——— -31= 36-5... =31 FALSE
SO THE CORRECT ANSWER = (9,31)