Select is a function or is not a function to correctly classify each relation. title is a function is not a function
(a) {(3, , , , 8)}
(b) {(2, , , , 4)}
(c) {(2, , , , 6)}
(d) {(3, , , , 4)}
plz i have anther one sorry

Heather is writing a quadratic function that represents a parabola that touches but does not cross the x-axis at x = -6. which function could heather be writing? fx) = x2 + 36x + 12 = x2 - 36x - 12 f(x) = -x + 12x + 36 f(x) = -x? - 12x - 36