If the sign of the term involving x2 is positive then it is concave upward, provided everybody agrees what concave upwards means. Just like y=x2 is concave upwards.
The slope of your quadratic equation in general form or standard form.
That's not enough information to draw the graph. All you know is that it crosses the x-axis at those 2 points. You don't know whether it opens upward or downward, or how far the nose is above or below the x-axis. You need more information about the function before you can graph it. This is just another way of saying that there are an infinite number of different quadratic functions that all have those same x-intercepts.
Shade upward if the inequality involves a "greater than" comparison. Shade downward if the inequality involves a "less than" comparison.
A straight stairlift functions a lot like an escalator. Straight stairlifts use an electric powered belt to propel the chair upward and to slowly release the chair downward.
As stairs can lead both upward or downward, there is no opposite. An "alternative" to stairs is an elevator.
The slope of your quadratic equation in general form or standard form.
That's a point where the curve of a graph changes from "concave upward" to "concave downward", or vice versa.
The point when a curve changes from concave upward to concave downward is called the inflection point. It is the point where the curve transitions from being curved "upwards" to being curved "downwards" or vice versa. At the inflection point, the rate of change of the curve's curvature changes sign.
MC shifts downward.
If the number in front of the x squared is negative, then the parabola will open upwards. The opposite occurs when the number is positive.
UPWARD UPWARD UPWARD
Upward.
The upward and the downward bias refers to the overestimation or overstatement by a statistical measure of a given event.
downward
downward
Downward.
It is a function because for every point on the horizontal axis, the parabola identified one and only one point in the vertical direction.