### Home > A2C > Chapter 4 > Lesson 4.1.4 > Problem 4-53

4-53.

Do the sides of a parabola ever curve back in like the figure below? Explain your reasoning.

Is the parabola a function? What do you know about functions?

4-53.

Do the sides of a parabola ever curve back in like the figure below? Explain your reasoning.

Is the parabola a function? What do you know about functions?