Graphing Quadratic Equations
10th Grade · Math · 90 min
Lesson Preview
Learning Objective
I can graph quadratic functions of the form f(x)=ax² and describe how the 'a' value affects the shape of the graph.
- 1
The graph of f(x) = -3x² + 8 will be a parabola because the highest degree term is x².
- 2
Because the coefficient on the x² term is negative, the parabola will open downwards.
- 3
When x = 0, f(x) = 8, so the y-intercept, where x = 0, is at the point (0, 8).
