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Select the approximate values of x that are solutions to f(x) = 0,

0 votes

where f(x) = -5x^2 + 9x + 9.?

asked Oct 11, 2014 in ALGEBRA 2 by anonymous

1 Answer

0 votes

The function is image.

Substitute image in the above equation.

image

Compare the equation image  with general form of quadratic equation image.

image

Substitute image in the quadratic formula image.

image

image

image

image

image

The solutions are - 0.7 and 2.5.

answered Oct 11, 2014 by casacop Expert

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