Question

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

Answer 1

Can you post the equation?

Answer 2

@ApollosChariot I just did srry.

Answer 3

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

Answer 4

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

Answer 5

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

Answer 6

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

Answer 7

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

Answer 8

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

Answer 9

put
\[2-\frac{ 1 }{ 2 }x=0\] solve for \(x\)

Answer 10

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

Answer 11

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

Answer 12

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