A parabola passes through the points (0, 5), (2, 1), and (6, 17). Homework Help ✎
What is its equation?
Where is its vertex?
Substitute each point into the equation y = ax2 + bx + c.
You will have a system of three equations with three unknowns.
One of your equations should be 1 = 4a + 2b + c.
Average the x-intercepts or complete the square.