Three different countries have
a quadratic function is a function in which the highest degree term is 2.
when the degree is two and the equation is a quadratic then the graph looks like a parabola always .
in the given options only option c is parabola so correct option is c.
option a is not parabola .(it is for cubic)
option b is a straight line means linear function .
option d cuts the x axis more than 2 times so it cannot be a quadratic .
so correct option is c
for this case we must find a reasonable estimate, in scientific notation, for a wavelength given by:
if we roll the decimal seven spaces to the right we have:
the exponent is negative.
the expression can be written as: