Answer:
7 ÷ 4/5 is 8.75 as a decimal or 8 3/4 as a fraction
The veretx is normally the minimum value
hack:
for f(x)=ax²+bx+c
the x value of the vertex is -b/2a
so
f(x)=1x²-16x+71
x value is -(-16)/(2*1)=16/2=8
find f(8) to find y value of vertex
f(8)=8²-16(8)+71
f(8)=64-128+71
f(8)=7
the vertex is (8,7)
the minimum value is 7
Step-by-step explanation:
x^2 +10x + 24
use FOIL
have a great day
The answer to your question is A but i dont see a D option so it might be wrong
