Learn how to evaluate a quadratic function for given input values

The video tutorial explains how to evaluate a function by substituting different input values into the function's rule. It demonstrates this process with examples, including evaluating the function at -2, 0, and -1. The instructor emphasizes the importance of understanding input-output relationships and addresses common questions and errors. The tutorial is part of a review, as indicated by its inclusion in a summer packet.

What is the result of substituting -2 into the function 3x^2 - 4x + 2?

• 18

• 22

• 24

• 20

When evaluating f(0) in the function 3x^2 - 4x + 2, what is the output?

• 4

• 2

• 6

• 0

In the function 3x^2 - 4x + 2, what is the result of substituting -1?

• 1

• 2

• 3

• 0

Why does the substitution of -1 in the function result in a positive value?

• Because the function is always positive

• Because the function rule changes

• Because negative numbers are ignored

• Because -1 squared is positive

What was the original problem mentioned in the discussion?

• f(-2)

• f(0)

• f(1)

• f(-1)