Write the equation in vertex form of the quadratic function that moves the parent function left 8 units and down 4 units. Vertex Form: y = (x - h)2 + k

If i think this is what your asking, he should look at the grams or pounds/ounces and compare the to their cost then max can identify which one is proportional and which is not ( i think xd)

That is what i got (fgx) hope this

F(1)=8,   f(2)=4,   f(3)=0,   f(4)=-4,   f(5)=-8 f(1)=2,   f(2)=2,   f(3)=4.5, f(4)=8, f(5)= 12.5 recursive- f(1)=2, f(n)=f(n-1)-2         explicit- f(n)=2-2n , f(20)=36 recursive- f(1)=45, f(n)=f(n-1)+10     explicit- f(n)=55+10n , f(20)=235 explicit- f(n)=45+15n, tina will have $255two ways of representing arithmetic sequences are by explicit and recursive equations.