SOLUTION: I really need help with these questions. Evaluate each function for x= -2,0,and 5. 1.) y = 9 + x 2.) y = x^2 - 1 Please help me because I need to get this to my teach

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Question 119518: I really need help with these questions.
Evaluate each function for x= -2,0,and 5.
1.) y = 9 + x
2.) y = x^2 - 1

Please help me because I need to get this to my teacher tommorrow.
Answer by jim_thompson5910(35256) (Show Source):
You can put this solution on YOUR website!
#1

Let's evaluate

Start with the given function.

Plug in . In other words, replace each x with -2.

Multiply 1 and -2 to get -2

Now combine like terms

-----------Now let's evaluate another value---------

Let's evaluate

Start with the given function.

Plug in . In other words, replace each x with 0.

Multiply 1 and 0 to get 0

Now combine like terms

-----------Now let's evaluate another value---------

Let's evaluate

Start with the given function.

Plug in . In other words, replace each x with 5.

Multiply 1 and 5 to get 5

Now combine like terms

#2

Let's evaluate

Start with the given function.

Plug in . In other words, replace each x with -2.

Evaluate to get 4.

Now combine like terms

-----------Now let's evaluate another value---------

Let's evaluate

Start with the given function.

Plug in . In other words, replace each x with 0.

Evaluate to get 0.

Now combine like terms

-----------Now let's evaluate another value---------

Let's evaluate

Start with the given function.

Plug in . In other words, replace each x with 5.

Evaluate to get 25.

Now combine like terms