Question

What is the value of the range of the function f(x)=2x^2-3x+8 for the domain value 3

Answer 1

The domain is the same as the x value and the range is the same as the y value, so you just plug in the 3 to all the x's.

$f(x) = 2 ({3})^{2} - 3(3) + 8 \\ f(x) = 18 - 9 + 8 \\ f(x) = 17$
the range of the function is 17