Question

Hello!! can someone help me with two algebra 2 questions?

Determine whether each function has a maximum or minimum value. then find the value.

1. y=-x^2+4x-4
A:maximum 0
B: maximum 4
C:minimum 0
D: minimum 4

2. y=0.5x^2+8x+5
A:maximum 19
B:minimum 2
C: maximum 8
D:minimum -27

Answer 1

Just plug them into a calc

Answer 2

i tried but i kept getting some way out there number

Answer 3

Did u graph it

Answer 4

yes but for number 1 im getting 2 and for number 2 i keep getting negative 8

Answer 5

Yes u will

Answer 6

then what do i do then?

Answer 7

Quadratic formula

Answer 8

im still so confused

Answer 9

the answers i got were maximum 4 for number 1 and for number two i got 2????

Answer 10

Use the quadratic formula

Answer 11

can you help me with it because im reallly not getting it

Answer 12

-4plusorminus√16-4(1)(-4)/2

Answer 13

okay

Answer 14

i dont get it

Answer 15

CAN SOMEONE PLEASE HELP ME??