evaluate f(-2) and f(4). Find the zero of f.
f(x)=2-1/2x

Question

apolloschariot · Answer

Can you post the equation?

anonymous · Answer

@ApollosChariot  I just did srry.

apolloschariot · Answer

Oh, okay, I didn't even see it. Basically what you do is when it says f(-2), you plug -2 into the equation for each x. And for f(4), you plug 4 into the equation for each x

anonymous · Answer

$$f \left( x \right)=2-\frac{ 1 }{ 2 }x$$  how do you find the zero of f though @ApollosChariot

apolloschariot · Answer

You set the equation equal to 0 and then solve for x

skullpatrol · Answer

|dw:1407691183395:dw|

anonymous · Answer

now it is much more clear 
find the zero by setting it equal to zero and solve

anonymous · Answer

ok last thing how would I graph -4 which is the zero @satellite73

anonymous · Answer

ok lets take it from the top$$f \left( x \right)=2-\frac{ 1 }{ 2 }x$$

anonymous · Answer

put 
$$2-\frac{ 1 }{ 2 }x=0$$ solve for $x$

anonymous · Answer

$$2-\frac{1}{2}x=0\
-\frac{1}{2}x=-2\
x=-2\times -2=4$$

anonymous · Answer

point on the graph is $(4,0)$

skullpatrol · Answer

Why do you think the point is called a "zero" of the graph?