Answer:

-1

Step-by-step explanation:

The maximum or minimum of a quadratic function occurs at

x

=

−

b

2

a

. If

a

is negative, the maximum value of the function is

f

(

−

b

2

a

)

. If

a

is positive, the minimum value of the function is

f

(

−

b

2

a

)

.

f

min

x

=

a

x

2

+

b

x

+

c

occurs at

x

=

−

b

2

a

Find the value of

x

equal to

−

b

2

a

.

x

=

−

b

2

a

Substitute in the values of

a

and

b

.

x

=

−

−

4

2

(

2

)

Remove parentheses.

x

=

−

−

4

2

(

2

)

Simplify

−

−

4

2

(

2

)

.=

1

Replace the variable

x

with

1

in the expression.

f

(

1

)

=

2

(

1

)

2

−

4

⋅

1

+

1

Simplify the result.

Answer:

I don't know

Step-by-step explanation:

I don't know