Evaluate the quadratic function, f(x) = 3x2
– 4x – 9 at x = -2
1 answer:
Answer:
11
Step-by-step explanation:
f(x) = 3x^2
– 4x – 9
Let x = -2
f(-2) = 3 (-2)^2 -4(-2) -9
=3(4) +8 -9
=12 +8 -9
20-9
11
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