Sunday

March 1, 2015

March 1, 2015

Posted by **Katie** on Tuesday, August 30, 2011 at 10:46pm.

f(x) = (5 - x)²

Find f(2) and f(-2)

I end up with 24 on both equations

- Math -
**MathMate**, Tuesday, August 30, 2011 at 10:54pm24 cannot be right, since f(x) is a perfect square if x is an integer.

f(2)=(5-2)²=?

f(-2)=(5-(-2))²=(7)²=?

- Math -
**Reiny**, Tuesday, August 30, 2011 at 10:54pmYour answer of 24 is incorrect for both cases

f(x) = (5-x)^2

f(2) = (5-2)^2 = 3^2 = 9

f(-2) = (5-(-2))^2 = 7^2 = 49

**Answer this Question**

**Related Questions**

Math - You are given two equations which are both true, and you are asked to ...

simultaneous equations - Solve 2a + b = 3 4a - 5b = 20 My attempt Multiply the ...

simultaneous equations - Solve 2a + b = 3 4a - 5b = 20 My attempt Multiply the ...

chemistry - If heat of reaction, Ca(s) + 2H+(aq) Ca2+(aq) + H2(g) , is - 544 kJ/...

Maths ..Equations - Hi I have to rearrnge the following to make y the subject.. ...

algebra - I need a step by step explanation on how to add these two equations 2x...

Calculus - Assume that each of the follwing functions gives the position of an ...

ALGEBRA/EQUATION - I believe I have the answers already. Just need confirmation ...

How do I do this.?(Math.) - Use the Substitution method to solve the system of ...

algebra - You are given to equations which are both true, and you are asked to ...