Question

Let f(x) = x2 - 3x - 7. Find f(-3).

Answer 1

Just insert the value in the func ... U asked this type of question b4 as well

Answer 2

I know..

Answer 3

So do u understand the question

Answer 4

Yes, but I don't know how to solve it.

Answer 5

Look we have a function here f(x)== x2 - 3x - 7
now we have to find f(-3) which means x=-3 ..
Now insert x=-3 in the equation

Answer 6

I got -5=-2x ;/

Answer 7

What are u doing there ?
Show me the steps

Answer 8

-3=-9x-7

Answer 9

U insert -3 in the func .. Thats it .. What more can u ask for.. U are going in wrong direction.. The answer will not contain x

Answer 10

I said I didn't know how to solve the equation

Answer 11

This is how u will get the answer
\[(-3)^{2}-3(-3)-7\]

Answer 12

-9+9-7=-7

Answer 13

No
9+9-7
Square of - gives +

Answer 14

So it's -7

Answer 15

Ahhhh .... Its 11 silly

Answer 16

This is very simple, all you do is plug in -3 into x
\[x^2-3x-7\] so...
\[(-3)^2-3(-3)-7\] then just solve..

= 9 +9 -7
=18-7
=11

Answer 17

Thats what i'm telling her

Answer 18

Oh I see I just tried the problem over again thank you

Answer 19

You need to improve ur basics