14-19 odd #

:or the following exercises, determine whether there 3 a minimum or maximum value to each quadratic =unction. Find the value and the axis of symmetry. 14. y(x) = 2x2 + 10x +12 .f(x)=2x210x+4 16. f(x)=-x2+4x+3 .f(x)=4x2+x1 18.h(t)=4t2+6t1 E.f(x) = %x2 +3x+1