Foundations
Foundations
Graphing a Quadratic
Example Continued
Step 4. Find the y-intercept.
To find the y-intercept, substitute 0 in for x and solve.
y = 2(0)2- 8(0) + 6 = 6.
The graph crosses the y-axis at the point (0,6).
Step 5. Plot all points and connect in a "U" shaped curve to create a graph.
The graph of y = 2x2 ? 8x + 6 is:
