This is what the graph looks like: The parabola only just touches the x-axis at x = â2/3; it doesn't actually cross. This is always true: if you have a root that appears exactly twice, then the graph will kiss the axis there, but not pass through.1  Solve 3x2 + 4x + 2 = 0.hen the answer is: x = â1.24, x = 3.24, rounded to two places. For reference, here's what the graph looks like: There is a connection between the solutions from the Quadratic Formula and the graph of the parabola: you can tell how many x-intercepts you're going to have from the value inside the square root.
The definition of a plummet is something that weighs something else down. An example of plummet is a weight tied to a piece of material. Plummet is defined as to fall down quickly and suddenly. An example of plummet is for a model airplane to quickly plunge from the sky.
Word Origin & History. plummet late 14c., ball of lead, plumb of a bob-line, from O.Fr. plomet, dim. of plom sounding lead (see plumb). The verb is first recorded 1620s, originally to fathom, take soundings, from the noun. Meaning to fall rapidly first recorded 1939.