Evaluate h(x) = 3x -2 when x = -1

How do you evaluate

h

(

−

2

)

given

h

(

x

)

=

3

x

2

+

2

−

2

x

?

Algebra Function Notation

1 Answer

smendyka

Mar 19, 2018

See a solution process below:

Explanation:

For each occurrence of

x

in

h

(

x

)

substitute

−

2

and evaluate the expression:

h

(

x

)

=

3

x

2

+

2

−

2

x

becomes:

h

(

−

2

)

=

(

3

⋅

(

−

2

)

2

)

+

2

−

(

2

⋅

−

2

)

h

(

−

2

)

=

(

3

⋅

4

)

+

2

−

(

−

4

)

h

(

−

2

)

=

12

+

2

+

4

h

(

−

2

)

=

14

+

4

h

(

−

2

)

=

18

Answer link

h=1

Step-by-step explanation:

h(-1) = 3x(-1) - 2(-1)

-1h = -3 + 2

-1h = -1

h/-1 = -1/-1

h = 1

hope this helps u!

explanation:

remove parenthesis:

=

apply rule

=

multiply fractions:

=

=

divide:

=

mordancy.