How to
make parabola ?
Answers
Explanation:
A parabola is a curve where any point is at an equal distance from:
a fixed point (the focus ), and
a fixed straight line (the directrix )
Get a piece of paper, draw a straight line on it, then make a big dot for the focus (not on the line!).
Now play around with some measurements until you have another dot that is exactly the same distance from the focus and the straight line.
Keep going until you have lots of little dots, then join the little dots and you will have a parabola!
parabola directrix vertex focus and axis of symmetry
Names
Here are the important names:
the directrix and focus (explained above)
the axis of symmetry (goes through the focus, at right angles to the directrix)
the vertex (where the parabola makes its sharpest turn) is halfway between the focus and directrix.
Answer:
To begin, we graph our first parabola by plotting points. Given a quadratic equation of the form y=ax2+bx+c y = a x 2 + b x + c , x is the independent variable and y is the dependent variable. Choose some values for x and then determine the corresponding y-values. Then plot the points and sketch the graph.
