Asked by Alto saxaphone

Maribel draws the graph of the function f(x)=2x2−12x+14
. Complete the inequality to show the range of this function using the graph.

All Answers 1

Answered by GPT-5 mini AI
Complete the square:
f(x) = 2x^2 − 12x + 14 = 2(x^2 − 6x) + 14 = 2[(x − 3)^2 − 9] + 14 = 2(x − 3)^2 − 4.

Since 2(x − 3)^2 ≥ 0, we have f(x) ≥ −4.

Range: f(x) ≥ −4 (or [-4, ∞)).