## You can model that arch of a building entrance by using the equation y=−13(x−5)(x−6), where x and y are measured in feet. The x-axis represe

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## Answers ( )

Answer:1 unit

Step-by-step explanation:The arch has the shape of an inverted parabola.

It intersects the x-axis (the ground) at the roots of the equation

-13(x – 5)(x – 6) = 0

Since the equation is already factored, we solve the equation by setting x – 5 equal to zero and x – 6 equal to zero and solving the equations.

x – 5 = 0 or x 6 = 0

x = 5 or x = 6

The roots of the equation are x = 5 and x = 6.

The width is the distance between x = 5 and x = 6.

6 – 5 = 1

The width of the arch at the ground is 1 unit.