What is 0.000345 expressed in scientific notation? O 3.45 x 102
O 3.45 x 10
0 3.45 x 102
0 3.45 x 10 4

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