(1)∵与y轴交于点C
∴C(0,6)
∵1/4x^2-5/2x+6=0 x1=4 x2=6
∴A(0,4)B(o,6)
(2)p(x,1/4x^2-5/2x+6)
S△POA=1/2×4(1/4x^2-5/2x+6)=1/2(x-5)^2-1/2 (0
(1)∵与y轴交于点C
∴C(0,6)
∵1/4x^2-5/2x+6=0 x1=4 x2=6
∴A(0,4)B(o,6)
(2)p(x,1/4x^2-5/2x+6)
S△POA=1/2×4(1/4x^2-5/2x+6)=1/2(x-5)^2-1/2 (0