Evaluating Functions and Expressions

The video tutorial guides viewers through evaluating the expression -2 * f(-6) + g(1) using given functions f and g. It starts by identifying the values of f(-6) and g(1) from a graph, which are 7 and -5, respectively. The expression is then simplified to -2 * 7 + (-5), resulting in -19.

What is the first step in evaluating the expression involving f and g?

• Evaluate g(-6)

• Calculate g(0)

• Determine the value of f(-6)

• Find the value of f(0)

How do you identify the input for f(-6) on the graph?

• Check the diagonal line

• Find the point on the horizontal axis

• Look at the vertical axis

• Use the intersection of axes

What is the value of f(-6) based on the function definition?

• 8

• 7

• 6

• 5

What is the value of g(1) according to the function?

• -4

• -6

• -3

• -5

What is the result of the expression -2 * f(-6) + g(1)?

• -20

• -19

• -18

• -17

Which operation is performed first in the expression -2 * f(-6) + g(1)?

• Division

• Addition

• Subtraction

• Multiplication