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if it's in the form of ax + bx +c , then to graph it you need to find the roots (intercept ) and its vertex and the y-intercept. to find the roots, you factor it, like this:
for example, you have this, x + 8x + 15, you factor to this: ( x + 3 ) ( x + 5).
those two numbers ( +3 and +5) , you switch the signs so that they are -3 and -5.
those are the roots. To find the y-intercept, in the expression, you make the x equal zero, and whatever number you simplify it to is the y-intercept. to find the vertex, you apply the formula x=-b/ 2a. whatever number you end up with is the x coordinate of the vertex. to find the y coordinate, you simply substitute the x value in the expression and simplify it and whatever you end up with is the y coordinate. you plot that coordinate, which is the vertex. it has to be curved. make it touch the y axis at the y intercept and the x axis at the roots. That's it.
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What do all graphs of quadratic functions have in common?
The graph of a quadratic equation is a parabola.
The graph of a quadratic equation is called a?
The graph of a quadratic equation is called a parabola.The graph of a quadratic equation is called a parabola.The graph of a quadratic equation is called a parabola.The graph of a quadratic equation is called a parabola.
What shape does the quadratic graph make?
The graph of a quadratic equation has the shape of a parabola.
What does it mean when the graph of a quadratic function crosses the x axis twice?
When the graph of a quadratic crosses the x-axis twice it means that the quadratic has two real roots. If the graph touches the x-axis at one point the quadratic has 1 repeated root. If the graph does not touch nor cross the x-axis, then the quadratic has no real roots, but it does have 2 complex roots.
The graph of a quadratic function?
Yes. And the question is ...
How do you graph a quadratic functions?
Calculator
What do all graphs of quadratic functions have in common?
The graph of a quadratic equation is a parabola.
Is it true that some quadratic functions cannot be graphed?
All quadratic functions with real coefficients can be graphed on a standard x-y graph. Not all quadratic functions have real roots, maybe that's what you were thinking of?
The graph of a quadratic equation is called a?
The graph of a quadratic equation is called a parabola.The graph of a quadratic equation is called a parabola.The graph of a quadratic equation is called a parabola.The graph of a quadratic equation is called a parabola.
The graph of a quadratic relation is a?
The graph of a quadratic relation is a parobolic.
What is the graph for quadratic equation?
the graph for a quadratic equation ct5r
What shape does the quadratic graph make?
The graph of a quadratic equation has the shape of a parabola.
What is a parabola the graph of?
It is the graph of a quadratic equation of the formy = ax^2 + bx + c
Do all quadratic functions have x intercepts?
No, sometimes the entire graph is completely above (or completely below) the x axis.
What do you call the graph of a quadratic function?
the graph of a quadratic function is a parabola. hope this helps xP
What does it mean when the graph of a quadratic function crosses the x axis twice?
When the graph of a quadratic crosses the x-axis twice it means that the quadratic has two real roots. If the graph touches the x-axis at one point the quadratic has 1 repeated root. If the graph does not touch nor cross the x-axis, then the quadratic has no real roots, but it does have 2 complex roots.
When can you use linear quadratic functions?
There are linear functions and there are quadratic functions but I am not aware of a linear quadratic function. It probably comes from the people who worked on the circular square.
