Find two quadratic functions (one that opens upwards and one that opens downward)

whose graphs have the x-intercepts: (1/4, 0) and (7/4, 0).

f(x)=(x-1)^{2}-(9/16)

f(x)=(x+1)^{2}+(7/16)

f(x)=-(x+1)^{2}-(7/16)

f(x)=(x-1)^{2}+(1/8)

f(x)=-(x-1)^{2}+(9/16)