Lets say you have an equation, y = x2 + 2x + 1. Now we do the following to draw parabola
- Let's find the y values for the following x values: 0, 1, -2, and -3.
- For 0: f(x) = (0)2 + 2(0) + 1 = 1. Our point is (0,1).
- For 1: f(x) = (1)2 + 2(1) + 1 = 4. Our point is (1,4).
- For -2: f(x) = (-2)2 + 2(-2) + 1 = 1. Our point is (-2,1).
- For -3: f(x) = (-3)2 + 2(-3) + 1 = 4. Our point is (-3,4).
- Plot these points to the graph and draw your U-shaped curve.
