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Home > A2C > Chapter 4 > Lesson 4.2.1 > Problem 4-76


Sketch a graph and draw the line of symmetry for the equation . What is the equation of the line of symmetry?

Use the and values in the equation to find the vertex.

Use the vertex to locate the axis of symmetry and write an equation for it.

The line of symmetry is .

Upward parabola, vertex at (4, comma negative 3), with dashed vertical line passing through the vertex.