goobert
29.01.2021 •
Mathematics
The cross-sectional shape of the archway of a bridge (measured in feet) is modeled by the
function ƒ(x) = -0.5x2 + 6x where ƒ(x) is the height of the arch and x is the horizontal
distance from one side of the base of the arch. How wide is the arch at its base? Will a box truck
that is 8 feet wide and 13.5 feet tall fit under the arch? If not, what is the maximum height a
truck that is 8 feet wide and is passing under the bridge can be
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Ответ:
x = -3
Step-by-step explanation:
if you add 1 to each side the equation is in vertex form where (-3,1) is the vertex; therefore, axis of symmetry is x = -3