Question

find the range of each function for the domain
{-4,-2,0,1.5,4}.
f(x)=5x^2+4

Answer 1

all you have to do is first use -4 in the equation for example f(-4)=5*(-4)^2+4
f(-4)=80+4 --> f(-4)=84 so the answers are {84,_,_,_,_} so you just continue and solve for each, so the answer for second one is f(-2)=.....