Find the Maximum or Minimum Value of the Function $f ( x ) = 1.4 x ^ { 2 } - 1.2 x - 0.9$

question 57

Multiple Choice

Find the maximum or minimum value of the function. Approximate to two decimal places.
- $f ( x ) = 1.4 x ^ { 2 } - 1.2 x - 0.9$

• A) \(0.43\)
• B) \(- 1.16\)
• C) \(- 0.43\)
• D) \(- 0.13\)

---

Definitions:

Phenotype

The observable physical or biochemical characteristics of an organism, as determined by both genetic makeup and environmental influences.

Environmental Influences

Factors within the environment, such as social, physical, and cultural elements, that can affect an individual’s behavior, development, and well-being.

Genotype

The genetic makeup of an organism, consisting of both the genes visible in the traits and those that are latent.

Phenotype

The observable characteristics or traits of an organism that are produced by the interaction of its genotype with the environment.