Can anybody me solve this f(x) = 1/2x - 4

solve for what? if you mean X the you'd have to make Y=f(x)=0

==> 0=1/2x-4 ==> 1/2x=4 ==>8x=1

so x=1/8

if the pizza is divided equally into 2 equal halves then you would get

πr^2/2

where r is the radius of the pizza.

happy to

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