In this lesson, we learn how to graph parabolas of the form f(x) = x^2 + c and f(x) = -x^2 + c, where c is a constant. We see that the first equation is a parabola that opens upwards and has the vertex at (0, c) and the y-axis as its axis of symmetry. The second equation is a parabola that opens downwards and also has the vertex at (0, c) and the y-axis as its axis of symmetry. We also learn how to find the vertex and the equation of the axis of symmetry for both types of parabolas.
Graphing Parabolas Part 2;
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