16. financial literacy a specific car's fuel economy in miles per gallon can be
approximated by f(x) = 0.56x4 - 0.18x3 - 0.016x2 + 1.38x - 0.38,
where x represents the car's speed in miles per hour. determine the fuel economy
when the car is traveling 40, 50, and 60 miles per hour.

step-by-step explanation:

x=6 and x=3

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answer: the correct option is d.

explanation:

it is given that the triangle j'k'l' shown on the grid below is a dilation of triangle jkl using the origin as the center of dilation.

from the given graph it is noticed that k(4,8) and k'(2,4). let origin is defined by o and scale factor is defined by k, then

    (1)

distance formula,

put these values in equation (1).

therefore scale factor is     and option d is correct.